CHAPTER I

Transcriber’s Notes:—

Italic text is denoted _thus_.

The spelling, hyphenation, punctuation and accentuation are as the

original, except for apparent typographical errors which have been

corrected.

Further transcriber’s notes can be found at the end of the book.

MILITARY ARCHITECTURE IN

ENGLAND DURING THE MIDDLE AGES

[Illustration:

_Frontispiece_

ROCHESTER: GREAT TOWER.]

MILITARY ARCHITECTURE

IN ENGLAND DURING THE

MIDDLE AGES

BY

A. HAMILTON THOMPSON

M.A., F.S.A.

Illustrated by 200 Photographs, Drawings, and Plans

HENRY FROWDE

OXFORD UNIVERSITY PRESS

LONDON, NEW YORK, TORONTO, AND MELBOURNE

1912

_Printed at_

THE DARIEN PRESS

_Edinburgh_

PREFACE

Apart from the late Mr G. T. Clark’s _Mediæval Military Architecture_,

published in 1884, the greater portion of which is a series of

monographs dealing with individual castles, there has been no attempt,

until within the last few years, to apply systematic treatment to

this branch of science. Recently, however, more than one book has

been published upon the general subject of the castles of England.

Mr Alfred Harvey has lately given a lucid account of the growth of

the castle, with a valuable essay upon English walled towns; and the

present year has seen the appearance of a book in which Mrs Armitage

has embodied the result of labours of the utmost importance, extending

over many years. In addition to works of a general character, a

number of separate monographs, indispensable to students, have been

published during the last twenty years, in the transactions of various

archæological societies. The contributions of Mr W. H. St John Hope to

the study of castle architecture take a foremost place among these,

with papers such as those by Mr J. Bilson on Gilling castle and by

Mr Harold Sands on Bodiam and the Tower of London; and the late Mr

Cadwallader Bates’ unfinished _Border Holds of Northumberland_ contains

accounts of Warkworth and Bamburgh, as well as of smaller castles and

peles, which must take rank among the classics of the subject.

In the present volume an attempt is made to trace the growth of the

general principles of medieval fortification, with special reference

to castles, in which, within their limited area, the most complete

illustration of those principles is given. In order to give greater

clearness to the account of their evolution, a prefatory chapter deals

generally with earlier types of fortification in Britain, and the

critical period of Saxon and Danish warfare is treated in the second

chapter with some detail. This leads us to the early Norman castle of

earthwork and timber; and the stone fortifications to which this gave

place are introduced by a brief account of the progress of siegecraft

and siege-engines. The Norman castle and its keep or great tower are

then described. The developments of the later part of the twelfth

century and the arrangements of the thirteenth-century castle, with

those of the dwelling-house within its _enceinte_, follow and prepare

the way for the castles of the reign of Edward I. which represent

the highest effort of military planning. In the last two chapters

is related the progress of the transition from the castle to the

fortified manor-house, which followed the introduction of fire-arms

into warfare and preceded the Renaissance period. It will be seen that

the castle is taken as the unit of military architecture throughout;

but illustrations are constantly drawn from walled towns, which are, in

fact, the castles of communities, and in the eleventh chapter extended

allusion is made to the chief features of their plan and defences.

In speaking of the walled town, however, as the castle of the

community, it must not be forgotten that the castle is, in its origin,

the stronghold of a single owner. That origin is still to some extent

a vexed question; for the well-known theory of Mr G. T. Clark, that

the castle of Norman times was identical with the _burh_ of the Saxon

Chronicle, was accepted as a dogma by the antiquaries of twenty-five to

fifty years ago, and a theory thus established, however precipitately,

is not easily shaken. The patient and thorough work of Mrs Armitage,

which deserves the admiration of every scholar, has done much to

disturb the foundations on which Mr Clark built his hypothesis; and

Mr Neilson, Dr Round, Mr St John Hope, and others, have contributed

their share to the discovery of the real character of the evidence,

and the formulation of a sounder theory. The present writer has

devoted much time to the study of the original authorities for Saxon

and Norman military history, and it is his conviction that the weight

of documentary evidence is entirely upon the side of the views upheld

with so much ability and originality by these recent investigators. At

the same time, the earthworks of early castles still present several

difficult problems; and the discredit into which Mr Clark’s theory

has fallen is a warning against the too confident acceptation of the

conclusions of a more critical age, and against the danger of forcing

exceptions into the service of the rule.

In the earlier part of this book, some allusion is made to methods

of Roman warfare; and the main points of two of the sieges conducted

by Cæsar and his lieutenants are summarily described. It need hardly

be said, in view of what follows, that the methods of military

architecture in the middle ages have, for the most part, their

exact prototypes in Roman and Byzantine history. The student of the

siege-campaigns of Philip Augustus will be constantly reminded, for

example, of the relation by Ammianus of the exploits of Julian the

Apostate. Too much emphasis cannot be laid on the importance, first,

of the contact of the Northmen who overran England and France with the

traditional expedients of Roman siegecraft, as they existed in the

eastern empire, and secondly, of the influence of the Crusades upon the

development of medieval fortification. The conditions of our military

architecture in the middle ages were naturally governed by the methods

of attack employed by a besieging force. As these had been brought

to a high state of perfection in the east, an advance upon which was

hardly possible, the history of English fortification, from the Norman

conquest to the general adoption of fire-arms in warfare, is that of a

progress towards a system of defence in which western Europe lagged far

behind the older centres of civilisation.

It is to be noted that, although the architecture of the castle and the

fortifications of towns naturally took its share in the formal progress

of Gothic art, the laws under which it was evolved bear no resemblance

to the principles of construction, in obedience to which the medieval

cathedral assumed its characteristic form. Ribbed vaults, Gothic

mouldings, and traceried windows afford a clue to the dates of the

various parts of a medieval castle, as they do to those of a church;

but they are merely incidental to a type of construction to which the

solid and impregnable wall is all-important. The cases are rare in

which the builders of castles paid much attention to elaborate detail

in the minor parts of their building: their decorative work is used

with the economy and simplicity appropriate to the massive construction

which their fortresses demanded.

A vast amount of work still remains to be done in the exploration

of our military buildings and the reconstruction of their history;

and, until that is accomplished, no thoroughly satisfactory general

hand-book can be written. Nevertheless, it is hoped that there is room

for books which may serve as general indicators to what has been done,

up to the present time, in this direction. The bibliography which will

be found preceding the text of this volume includes a selected list

of monographs or articles upon individual castles, many of which have

appeared in the transactions of various archaeological societies.

These vary considerably in value; but, taken as a whole, they serve to

enlarge our knowledge of the history and architecture of the buildings

with which they are concerned.

The author desires to express his thanks, first to his wife, without

whose constant help in the preparation of the book and in the provision

of drawings and plans to illustrate its pages, it could hardly have

been written. Mr Francis Bond, the editor of this series, has aided

the author with unfailing kindness, by reading through the proofs,

making suggestions as to the general form of the book, and arranging

for its adequate illustration. To the following, who have kindly

allowed the use of photographs, special thanks should be returned: Mrs

Jessie Lloyd, the Revs. J. Bailey and G. W. Saunders, and Messrs Harold

Baker, F. Bond, J. P. Gibson, F.S.A., G. J. Gillham, G. Hepworth, P. M.

Johnston, F.S.A., R. Keene, W. Maitland, E. A. and G. R. Reeve, F. R.

Taylor, and G. H. Widdows. The editors of the _Archaeological Journal_

have sanctioned the use of various plans from the annual programmes

of the Archaeological Institute. Mr A. Hadrian Allcroft and Messrs

Macmillan have given consent to the reproduction of three illustrations

from Mr Allcroft’s _Earthwork of England_. Permission to found the plan

of Chepstow castle on one in the official _Guide_ to that building

was kindly given by his Grace the Duke of Beaufort, through Mr Noel

H. P. Somerset. MM. Camille Enlart and Auguste Picard have permitted

the insertion of a plan of Château-Gaillard, founded on that in M.

Enlart’s _Manuel_. Mr R. Blair, F.S.A., has authorised a similar use of

illustrations founded on those of Dr Bruce’s _Roman Wall_. Thanks are

also due to the editor of the _Yorkshire Archæological Journal_ for the

plan of Sandal castle, and to Mr W. G. Watkins, jun., for his plan of

Lincoln castle. Special acknowledgments are due to Mr Godfrey L. Clark

for his liberality in putting at the disposal of the writer valuable

plans and drawings from his father’s work. The author much regrets that

questions of space and cost have prevented him from taking advantage of

more than a limited number of the generous offers of illustration which

reached him during the preparation of the book for the press.

TABLE OF CONTENTS

CHAPTER PAGE

PREFACE vii

BIBLIOGRAPHY xiii

I. EARLY EARTHWORKS AND ROMAN STATIONS 1

II. THE SAXON AND DANISH PERIOD 21

III. THE ENGLISH CASTLE AFTER THE CONQUEST 35

IV. THE PROGRESS OF ATTACK AND DEFENCE 58

V. THE BEGINNING OF THE STONE CASTLE 83

VI. THE KEEP OF THE NORMAN CASTLE 110

VII. THE PERIOD OF TRANSITION: CYLINDRICAL TOWER-KEEPS 160

VIII. THE DWELLING-HOUSE IN THE CASTLE 188

IX. CASTLES OF THE THIRTEENTH CENTURY: THE FORTIFICATION

OF THE CURTAIN 212

X. THE EDWARDIAN CASTLE AND THE CONCENTRIC PLAN 252

XI. MILITARY ARCHITECTURE IN THE LATER MIDDLE

AGES: FORTIFIED TOWNS AND CASTLES 287

XII. THE AGE OF TRANSITION: THE FORTIFIED DWELLING-HOUSE 334

INDEX OF PERSONS AND PLACES 369

INDEX RERUM 381

BIBLIOGRAPHY

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ABBO, De Bello Parisiaco libri tres (Migne, _Patrologiae Cursus

Completus_, vol. 131 (1853), pp. 722-62).

AMIENS, GUY OF. Carmen de Hastingae proelio (Chroniques

Anglo-Normands). Rouen, 1836-40.

ANGLO-SAXON CHRONICLE, ed. C. Plummer. 2 vols. Oxford, 1892-9.

ANNA COMNENA. Alexias, ed. A. Reifferscheid. 2 vols. Leipzig, 1884.

ANNALES BERTINIANI (Annales Francorum, vulgo Bertiniani dicti),

ed. Dom. M. Bouquet, _Recueil des historiens des Gaules et de la

France_, vols. vi. (1749), 192-204; vii. (1749), 59-124; viii.

(1752), 26-37.

ARDRES, LAMBERT OF. Extracts in Bouquet, _Recueil des historiens_,

vols. xi. (1767), 295-307; xiii. (1786), 423-53; xviii. (1822),

583-8.

BEDE. Historia Ecclesiastica, ed. C. Plummer. Oxford, 1896.

BRETON (LE), GUILLAUME. Philippidos libri xii., ed. Bouquet, _Recueil

des historiens_, vol. xvii. (1818), 117-287.

CAESAR. Commentaries, ed. B. Kübler. 3 vols. Leipzig, 1893-6.

COLMIEU, JEAN DE, canon of St Martin, Ypres. Vita beati Joannis

Morinorum episcopi (_Acta Sanctorum_, January, vol. iii. 409-17).

DICETO, RALPH DE. Historical Works (Ymagines Historiarum and

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No. 68).

DOMESDAY BOOK (Record Commission). 4 vols. Lond., 1816.

HENRY VIII., LETTERS AND PAPERS, ed. Brewer and Gairdner, vol. iv.

HOVEDEN, ROGER OF. Chronicle, ed. W. Stubbs. 4 vols. (Rolls Series,

No. 51).

JOINVILLE, JEAN, SEIGNEUR DE. Histoire de Saint Louis, ed. N. de

Wailly. Paris, 1874 (translation of Chronicle by Sir Frank Marzials,

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MONTE, ROBERT DE (Robert de Torigny, abbot of Mont-Saint-Michel).

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ORDERICUS VITALIS. Historia Ecclesiastica, ed. A. le Prévost. 5 vols.

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PATENT ROLLS, CALENDARS OF, 1216-66, 1271-1364, 1377-1485. 47 vols.

(in progress).

PETERBOROUGH, BENEDICT OF. Chronicle, ed. W. Stubbs.

2 vols. (Rolls Series, No. 49).

PIPE ROLLS. Pipe Roll Society Publications. 27 vols. (in progress).

London, 1884, etc.

RYMER, THOMAS. Foedera. 20 vols. London, 1704-35.

STUBBS, WILLIAM, D.D. Select Charters and other Illustrations of

English Constitutional History, 8th edit. Oxford, 1905.

SUGER. Gesta Ludovici Grossi, ed. A. Molinier. Paris, 1887.

VEGETIUS. Epitoma Rei Militaris, ed. C. Lang. Leipzig, 1885.

VETUSTA MONUMENTA, vol. vi. (Bayeux Tapestry). London, 1842.

VILLEHARDOUIN, GEOFFROI DE. De la Conqueste de Constantinople par

les Barons François associez aux Venitiens, ed. N. de Wailly. Paris,

1872-4 (trans. Sir Frank Marzials, London, 1908).

VITRUVIUS. De Architectura, ed. V. Rose. Leipzig, 1899.

WENDOVER, ROGER OF. Chronica sive Flores Historiarum, ed. H. G.

Hewlett, 3 vols. (Rolls Series, No. 84).

2. General.

ALLCROFT, A. HADRIAN. Earthwork of England. London, 1908.

ARMITAGE, ELLA S. Anglo-Saxon burhs and early Norman castles (_Proc.

Soc. Antiq. Scotland_, xxxiv. 260-88).

—— The Early Norman Castles of England (_English Historical Review_,

xix. 209-45 and 417-55).

—— The Early Norman Castles of the British Isles. London, 1912.

BRUCE, J. C., LL.D., F.S.A. Hand-book to the Roman Wall, ed. Robert

Blair, F.S.A., 5th edition. London and Newcastle-on-Tyne, 1907.

CHRISTISON, DAVID, M.D. Early Fortification in Scotland: Motes,

camps, and forts. Edinburgh and London, 1898.

CLARK, G. T., F.S.A. Mediæval Military Architecture in England. 2

vols. London, 1884.

CLEPHAN, R. COLTMAN, F.S.A. An Outline of the History of Gunpowder

and that of the Hand-Gun, from the epoch of the earliest records to

the end of the fifteenth century (_Archaeol. Journal_, lxvi.

145-70).

—— The Military Handgun of the sixteenth century (_Archaeol.

Journal_, lxvii. 109-50).

—— The Ordnance of the fourteenth and fifteenth centuries (_Archaeol.

Journal_, lxviii. 49-138).

CODRINGTON, THOMAS. Roman Roads in Britain. London, 1903.

D’AUVERGNE, EDMUND B. The Castles of England. London, 1907.

—— The English Castles, London, 1908.

DIEULAFOY, M. Le Château-Gaillard et l’architecture militaire au

XIIIᵐᵉ siècle (_Mémoires de l’Académie des Inscriptions_, tom.

xxxvi., part. 1). Paris, 1898.

ENLART, CAMILLE. Manuel d’Archéologie française, vol. ii. Paris, 1904.

HARVEY, ALFRED. The Castles and Walled Towns of England. London, 1911.

HAVERFIELD, Prof. F. J., LL.D., D.Litt., V.P.S.A. The Romanization of

Roman Britain. London, 1905.

—— Roman Britain (_Cambridge Medieval History_, i. 367-81: see

_ibid._ 666-7 for bibliography of various articles by the same

writer).

HOCHFELDEN, G. H. KRIEG VON. Geschichte der Militar-Architektur in

Deutschland. Stuttgart, 1859.

HOPE, W. H. ST JOHN. English fortresses and castles of the tenth and

eleventh centuries (_Archaeol. Journal_, lx. 72-90).

MACKENZIE, Sir J. D. The Castles of England, their Story and

Structure. 2 vols. London, 1897.

NEILSON, GEORGE. The motes in Norman Scotland (_Scottish Review_ xiv.

209-38).

OMAN, Prof. C. W. C., F.S.A. A History of the Art of War in the

Middle Ages. London, 1898.

ORPEN, G. H. Motes and Norman castles in Ireland (_Proc. Royal Soc.

Antiq. Ireland_, xxxvii. 123-52).

PARKER, J. H., and TURNER, T. HUDSON. Some account of domestic

architecture in England. 3 vols, in 4. Oxford, 1851-9.

ROUND, J. HORACE, LL.D. The Castles of the Conquest. (_Archaeologia_,

lviii. 313-40).

—— Feudal England, Historical Studies on the XIth and XIIth Centuries

(new edition). London, 1909.

SAINT-PAUL, ANTHYME. Histoire Monumentale de la France, 6th edition.

Paris, 1903.

TURNER, T. HUDSON; _see_ PARKER, J. H.

VAN MILLINGEN, A. Byzantine Constantinople. London, 1899.

VIOLLET-LE-DUC, E. Dictionnaire Raisonné de l’Architecture française

du XIᵉ au XVIᵉ Siècle. 10 vols. Paris, 1854, etc.

—— Essai sur l’architecture militaire au moyen âge. Paris, 1854

(translated by M. Macdermott, Oxford and London, 1860).

—— Histoire d’une forteresse. Paris, n.d.

WARD, W. H. French Châteaux and Gardens in the XVIth Century

(drawings reproduced from Androuet-du-Cerceau). London, 1909.

WESTROPP, T. J. Irish motes and alleged Norman castles (_Proc. Royal

Soc. Antiq. Ireland_, xiv. 313-45, and xv. 402-6).

3. Special Monographs, etc.

ACTON BURNELL. Hartshorne, C. H., F.S.A. (_Archaeol. Journal_, ii.

325-38).

ALNWICK. Clark, _Mediæval Mil. Architecture_, i. 175-85.

—— Knowles, W. H., F.S.A., F.R.I.B.A. The Gatehouse and Barbican of

Alnwick Castle (_Archaeologia Æliana_, 3rd ser., v. 286-303).

AMBERLEY. Clarkson, G. A. (_Sussex Arch. Coll._, xvii. 185-339).

ARUNDEL. Clark, i. 195-203.

AUCKLAND. Rev. J. F. Hodgson (_Archaeologia Æliana_, xix. 89-92).

AYDON. Knowles, W. H. (_Archaeologia_, lvi. 78-88). _See_ also Bates,

_Border Holds_.

BAMBURGH. Bates, _Border Holds_; Clark, G. T. (_Archaeol. Journal_,

xlvi. 93-113).

BARNARD CASTLE. Clark, i. 204-13.

BEAUMARIS. Clark, i. 213-17.

BELSAY. Bates, _Border Holds_.

—— Middleton, Sir Arthur E., Bart. An account of Belsay castle

(privately printed). Newcastle-on-Tyne, 1910.

BERKELEY. Clark, i. 228-39.

BERKHAMPSTEAD. Clark, i. 223-38.

BERWICK-ON-TWEED. Norman, F. M. (Commander R.N.): Official Guide to

the Fortifications. Berwick, 1907.

BODIAM. Clark, i. 239-47.

—— Sands, Harold, F.S.A., in _Sussex Archaeol. Collections_, xlvi.

114-33.

BOTHAL. Bates, _Border Holds_.

BOWES. Clark, i. 259-64.

BRIDGNORTH. Clark, i. 273-81.

BRISTOL. Harvey, Alfred, M.B. Bristol, a historical and topographical

account of the city. London, 1906.

—— (castle). Pritchard, J. E., F.S.A. (_Proceedings of Clifton

Antiquarian Club_, iv. 17-19).

BRONLLYS. Clark, i. 283-6; _Archaeologia Cambrensis_, 3rd ser., viii.

81-92.

BROUGHTON. Lord Saye and Sele (_Berks, Bucks, and Oxon. Archaeol.

Journal_, new ser., vii. 23-5).

BUILTH. Clark, i. 304-8.

CAERPHILLY. Clark, i. 315-35.

CALDICOT. Bellows, J. (_Cotteswold Field Club_, vi. 263-7).

CALDICOT. Cobb, J. R. (_Clifton Antiq. Club_, iii. 35-40).

CAMBRIDGE. Hope, W. H. St John (_Camb. Antiq. Soc._, xi. 324-46).

—— Hughes, Prof. T. M‘Kenny, F.S.A. (_ibid._, ix. 348).

CARCASSONNE. Viollet-le-Duc, E. La Cité de Carcassonne. Paris, 1858.

CARDIFF. Clark, i. 336-50; Ward, J., F.S.A. Cardiff castle, its Roman

origin (_Archaeologia_, lvii. 335-52).

CAREW. Cobb, J. R. (_Archaeologia Cambrensis_, 5th ser., iii. 27-41).

CARISBROOKE. Beattie, W. (_Journal Archaeol. Assoc._, xi. 193-205).

—— Stone, P. G., F.S.A. (_Proc. Soc. Antiq._, 2nd ser., xvi. 409-11).

CARLISLE. Clark, i. 350-8

CARNARVON. Clark, i. 309-15.

—— Hartshorne, C. H. (_Archaeol. Journal_, vii. 237-65: _Archaeologia

Cambrensis_, 3rd ser., i. 242-6).

CHÂTEAU-GAILLARD. Clark, i. 378-85; Dieulafoy, M., _see_ General

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CHEPSTOW. Clark, G. T. (_Bristol and Glouc. Archaeol. Soc._, vi.

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—— Wood, J. G., F.S.A. The Lordship, Castle, and Town of Chepstow.

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—— The History and Antiquities of Colchester castle. Colchester,

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—— Hartshorne, C. H. (_Archaeologia Cambrensis_, new ser., v. 1-12).

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118-78).

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—— Compton, C. H. (_Journal British Archaeol. Assoc._, new ser., ix.

111-16).

DURHAM. Clark, ii. 32-5, and _Archaeol. Journal_, xxxix. 1-22.

—— Gee, H., D.D., F.S.A. (_Proc. Soc. Antiq._, 2nd ser., xx. 17-18,

and _Trans. Durham and Northumb. Archaeol. Soc._).

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GILLING. Bilson, J. (_Yorks Archæol. Journal_, xix. 105-92).

GUILDFORD. Clark, ii. 53-71.

—— Malden, H. E. (_Surrey Archaeol. Soc._, xvi. 28-34).

HADDON. Cheetham, F. H. Haddon Hall. London and Manchester, 1904.

HALLATON. Dibbin, H. A. (_Proc. Soc. Antiq._, 2nd ser., vii. 316-21).

HARLECH. Chapman, F. G. W. (_Journal British Archaeol. Assoc._ xxxiv.

159-67).

—— Clark, ii. 72-81.

HASTINGS. Clark, ii. 82-88.

—— Dawson, C., F.S.A. History of Hastings Castle. 2 vols. London,

1909.

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—— Knowles, E. H. The Castle of Kenilworth. Warwick, 1872.

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Chesh. Antiq. Soc._, xix. 45-76).

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xii. 95-122).

LANGLEY. Bates, C. J. (_Archaeologia Æliana_, x. 38-56).

LEEDS. Clark, ii. 176-8.

—— James, F. V. (_Archaeologia Cantiana_, xxv. pp. xlix-liii).

LEICESTER. Clark, ii. 182-8.

—— Thompson, James. Leicester Castle. Leicester, 1859.

LEWES. Clark (_Sussex Archaeol. Collections_, xxxiv. 57-70).

LINCOLN. Clark, ii. 189-201.

—— Sympson, E. Mansel, M.D. Lincoln, a historical and topographical

account of the city. London, 1906.

LLANSTEPHAN. Williams, Sir John (_Archaeologia Cambrensis_, 6th ser.,

vii. 108-18).

LONDON, TOWER OF. Clark, ii. 203-72.

—— Sands, H., F.S.A. (_Memorials of Old London_, London, 1908, vol.

i. 27-65).

LUDLOW. Clark, ii. 273-90.

—— Hope, W. H. St John (_Archæologia_, lxi. 258-328).

LUMLEY. Dodd, J. (_Journal British Archaeol. Assoc._, xxii. 45, 46).

MANORBIER. Duckett, Sir J. (_Archaeologia Cambrensis_, 4th ser., xi.

134-145, 286-91, xiii. 166-73).

MIDDLEHAM. Clark, ii. 293-300.

MITFORD. Clark, ii. 300-3.

MONTGOMERY. Clark, ii. 303-12.

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Mont-Saint-Michel et de ses abords. Paris, 1877.

—— Massé, H. J. L. J. A short history and description ... of Mont S.

Michel. London, 1902.

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1911.

NEWCASTLE-ON-TYNE. Bates, C. J. (_Archaeologia Æliana_, ix. 120-9).

—— Heslop, R. O., F.S.A. (_ibid._, xxv. 91-105; _Journal of British

Archaeol. Assoc._, new ser., xii. 137-8, 214-5).

—— The Castle of Newcastle, a short descriptive guide. Newcastle,

1906 (4th ed.).

NORHAM. Bates, C. J. (_Archaeologia Æliana_, v. 52-5).

—— Clark, ii. 322-35.

—— Jerningham, Sir H. E. H. Norham Castle. Edinburgh, 1883.

NORTHAMPTON. Hartshorne, C. H. (_Archaeol. Journal_, iii. 309-32).

NORTHUMBRIAN CASTLES. Bates, Cadwallader J. The Border Holds of

Northumberland (_Archaeologia Æliana_ [Newcastle-on-Tyne], xv.

1-465).

—— Hartshorne, C. H. Feudal and military antiquities of

Northumberland and the Scottish Borders (_Memoirs of Brit. Archaeol.

Inst._, Newcastle, vol. 2, 1858).

NORWICH. Hartshorne, A., F.S.A. (_Archaeol. Journal_, xlvi. 260-8).

—— The Walls of Norwich (report of corporation). Norwich, 1910.

NOTTINGHAM. Green, Emanuel, F.S.A. (_Archaeol. Journal_, lviii.

365-97).

OAKHAM. Hartshorne, C. H. (_Archaeol. Journal_, v. 124-42).

—— Thompson, A. Hamilton, F.S.A. (_Rutland Magazine_, v. 80-88).

ODIHAM. Clark, ii. 336-45.

OLD SARUM. Clark, ii. 447-458.

—— Hope, W. H. St John, and Hawley, Lt.-Col. W., in _Proc. Soc.

Antiq._, 2nd ser., xxiii. 190-200 and 501-17.

ORFORD. Hartshorne, C. H. (_Archaeologia_, xxix. 60-9).

—— Redstone, V. B. (_Trans. Suffolk Archaeol. Inst._, x. 205-30).

OXFORD. Hartshorne, C. H. (_Archaeol. Journal_, viii. 354-65).

—— Hope, W. H. St John (_ibid._, lxvii. 363-6).

—— Lynam, Charles. The Crypts of the Churches of St Peter in the

East, and of St George within the Castle, Oxford (_ibid._, lxviii.

203-17).

PEAK CASTLE. Hartshorne, C. H. (_Archaeol. Journ._, v. 207-16).

—— Hope, W. H. St John (_Derbyshire Archaeol. Soc._, xi. 120-6).

—— Kirke, Henry (_Derbyshire Archaeol. and Nat. Hist. Soc._, xxviii.

134-46).

PEMBROKE. Clark (_Archaeologia Cambrensis_, 3rd series, v. 1-13,

etc.; vi. 1-11, etc.; vii. 185-204).

—— Cobb, J. R. (_ibid._, 4th series, xiv. 196-220, 264-73).

PEVENSEY. Clark, ii. 359-67.

—— Salzmann, L. F. (_Sussex Archaeol. Collections_, xlix. 1-30, etc.).

PICKERING. Clark, ii. 368-75.

PONTEFRACT. Clark, ii. 375-88.

—— Hartshorne, C. H., _Journal British Archaeol. Assoc._, xx. 136-55).

PORCHESTER. Clark, ii. 388-400.

PRUDHOE. Bates, _Border Holds_.

RABY. Scott, O. S., Raby, its Castle and its Lords. Barnard Castle,

1908.

RAGLAN. Beattie, W. (_Jour. Archaeol. Assoc._, ix. 215-30).

—— Bradney, J. A. (_Bristol and Glouc. Archaeol. Soc._, xx. 76-87).

RICHMOND. Clark (_Yorkshire Archæol. Journal_, ix. 33-54).

—— Curwen, J. F., (_Cumberland and Westmorland Antiq. and Archaeol.

Soc._, vi. 326-32).

—— _Yorks Archæol. Journal_, xx. 132-3.

RISING. Beloe, E. M., F.S.A. (_Norfolk Archaeology_, xii. 164-89).

—— Clark, i. 364-77.

ROCHESTER. Beattie, W. (_Journal Archaeol. Assoc._, ix. 215-30).

—— Clark, ii. 405-23.

ROCHESTER. Hartshorne, C. H. (_Archaeol. Journal_, xx. 205-23).

—— Payne, G. (_Archaeologia Cantiana_, xxvii. 177-92).

ROCKINGHAM. Bigge, H. J. (_Assoc. Archit. Soc. Reports_, xi. 109-18).

—— Clark, ii. 423-46.

—— Hartshorne, C. H. (_Archaeol. Journal_, i. 356-78); and privately

printed, Oxford, 1852.

—— Wise, C. Rockingham Castle and the Watsons. London, 1891.

SANDAL. Walker, J. W., F.S.A. (_Yorks Archæol. Journal_, xiii.

154-88).

SCARBOROUGH. Clark, ii. 458-67.

—— Stevenson, W. H. (_East Riding Antiq. Soc._, xiv. 13-17).

SKENFRITH. Bagnall-Oakeley, E. (_Bristol and Glouc. Archaeol. Soc._,

xx. 93-6).

—— Clark, ii. 467-72.

SOUTHAMPTON (town walls). Clark, ii. 472-81.

—— Hope, W. H. St John (_Proc. Soc. Antiq._, 2nd series, xvii. 221-4).

STOKESAY. De la Touche, G. (_Journal British Archaeol. Assoc._, xxiv.

238-40).

—— J. G. D. (_Archaeologia Cambrensis_, xvi. 299-304).

SUFFOLK CASTLES. Redstone, V. B. Suffolk Castles (_Suffolk Archaeol.

Inst._, xi. 301-19).

SUSSEX CASTLES. Blaauw, W. H. Royal licences to fortify towns and

houses in Sussex (_Sussex Archaeol. Collections_, xiii. 104-17).

SWANSEA. Capper, C. (_Archaeologia Cambrensis_, 5th series, iii.

302-7).

TAMWORTH. Clark, ii. 481-8.

TATTERSHALL. Sympson, E. Mansel (_Memorials of Old Lincolnshire_,

1911, pp. 179-97).

TICKHILL. Clark, ii. 494-9.

TRETOWER. Clark, ii. 499-503.

TUTBURY. Clark, ii. 505-8.

WARK. Bates, _Border Holds_.

WARKWORTH. Bates, _Border Holds_.

WELLS (bishop’s palace). Davis, C. E. (_Journal British Archaeol.

Assoc._, xiii. 177-86).

WINGFIELD. Cox, J. C. (_Derbyshire Archaeol. Soc._, viii. 65-78).

—— Edmunds, W. H. Guide to Wingfield Manor.

YORK. Clark, ii. 534-48 (The Defences of York).

—— Cooper, T. P. York, The Story of its Walls and Castles. London,

1904.

—— —— The Castle of York. London, 1912.

YORKSHIRE CASTLES. Thompson, A. Hamilton. The Castles of Yorkshire

(_Memorials of Old Yorkshire_, 1909, pp. 236-64).

MILITARY ARCHITECTURE IN ENGLAND DURING THE MIDDLE AGES

CHAPTER I

EARLY EARTHWORKS AND ROMAN STATIONS

The history of military fortification in England begins with those

strongholds which, at vast expense of labour, the early inhabitants

of Britain hewed out of the soil, surrounding defensible positions

with ramparts of earth, divided by deep fosses. The approximate date

of these earthworks can be determined only by excavation, and a vast

amount of work remains to be done in this direction. The number,

however, of those which can be proved to be earlier than the Roman

occupation is very large; and, of this number, a considerable portion,

including some of the most stupendous examples of fortified hill-camps,

may have been the work of neolithic man some two thousand years before

the Christian era. Relative dates in this connection concern us less

than principles of fortification. The hill-camps of pre-Roman Britain

may be divided roughly into two classes. In the first place, there

are those which occupy the summit of a promontory of high land, which

slopes so steeply on all sides but one that artificial defence is

necessary on that side alone. The second class is that of the so-called

“contour forts,” in which the summit of a hill is utilised for the

camp, and encircled by trenches following the contour of the ground.

[Illustration: Maiden Castle]

In each case the defences provided by the inhabitants consist of

earthen banks, the materials of which have been dug from the fosses or

ditches which surround their outer face. An earthen bank and fosse,

thrown across the neck of land between the promontory and the plateau

beyond, convert the extremity of the promontory into a fortified

enclosure. Well-known examples of such fortresses are the three camps,

one on the east and two on the west side of the river, which guarded

the valley of the Avon at Clifton. The labour necessary for the

construction of these was naturally far less than that which went to

the making of the great contour fortresses, of which so many splendid

examples remain in Somerset, Wiltshire, Dorset, and in the chalk

districts generally. In these cases, the whole area, or at any rate the

greater part of it, stood in need of entrenchment. There are points

at which the slope is so precipitous that the bank and ditch were

dispensed with, or, as in part of Cissbury camp near Worthing, only a

single bank or ditch was necessary.[1] Also, the steeper the ground,

the less was the labour required in constructing the entrenchments.

But these positions often took the form of enclosures surrounded by

double or triple lines of defence, often of stupendous size. For the

greater part of its extent, the _vallum_ or bank of the oval camp of

Cissbury is double, and along the outer edge of the encircling fosse

is a formidable counterscarp or parapet. Poundbury, which lies on the

high ground west of Dorchester, has a single bank and ditch on its east

and south sides. On the west side the bank is doubled; but the north

side, where the hill falls almost perpendicularly to the Frome, was

left without artificial defence. The superb fortress of Maiden Castle

(2), which crowns an isolated hill, 432 feet high, south of Dorchester,

shows a bewildering complication of plan. The oval central space is

ringed by a number of banks and ditches, which varies from three on the

north side to as many as eight about the western entrance.

[Illustration: Maiden Castle; plan]

These early camps form merely the preface to our subject, and attention

need be called only to some general features. Their character, like

that of the medieval town or castle, was strictly defensive. They

were the strongholds of races whose weapons were of a very primitive

description, and could carry to no great range. What their inhabitants

needed was an impregnable fortress, within which they and their herds

could be well sheltered from attack. They belong to a day before siege

operations were possible. To carry them, a determined onset and a

hand-to-hand fight were necessary. Their strength therefore depended

on the complexity of their defences. No enemy could hope to scale the

flanking banks of Maiden Castle, one by one. The entrances to the camp,

at its eastern and western ends (3), were so elaborately concealed

by the overlapping ramparts, that even on a ground-plan they are far

from obvious; and it was almost inevitable that an attacking force,

without a guide acquainted with the ground, would be decoyed into a

_cul-de-sac_ and overwhelmed by the missiles of the defenders on the

ramparts.

[Illustration: Old Sarum

(From Mr Hadrian Allcroft’s _Earthwork of England_ by kind permission

of Messrs Macmillan & Co.)]

The steepness of the bank itself constituted a formidable means of

defence. At Maiden Castle the great northern banks rise to a height

of 60 feet or more. The top of the outer bank of Old Sarum (4) is

106 feet above the level of the ditch below.[2] In many cases, and

probably in all, the inner bank was crowned by a stockade, consisting

of a series of upright stakes, between and round which was twined an

impenetrable hedge of thorns. The plateau or berm which was sometimes

left behind the parapet of the bank, where there was more than a single

bank and ditch, was a valuable asset to the defenders of prehistoric

strongholds, forming an advance post from which they were able to wield

their missiles freely; while sometimes the summit of one or more of the

outer banks was made for the same purpose into a broad platform, which

allowed greater freedom of movement. The parapet or counterscarp of

the outer ditch was probably defended by a stockade, and it is known

that in some cases sharpened stakes or stones were fixed firmly in the

bottom of the ditches.

[Illustration: Bury Ditches]

The impregnable character of the _enceinte_ was thus ensured. But

further skill was necessary to defend the entrances of the camp. Of

these there was usually more than one, and these were necessarily

formed by cuttings through the banks. As in the case of Maiden Castle,

the path of entry could be converted into a labyrinth by multiplying

the banks and ditches. Every inch of this circuitous path is guarded

by tall ramparts: there are seven or eight points in its course at

which fatal error was possible, and one at any rate where an attacking

army could hardly fail to rush securely upon destruction. The eastern

entrance is so guarded by transverse banks that the path is almost

equally difficult to find. It was seldom, however, that entrances were

so elaborately protected. At Old Sarum the western entrance is covered

by a semicircular outwork, on the flanks of which are the two inlets to

the passage through the outer _vallum_. On the east side the entrance

is through a narrow passage which runs for some distance between the

parapet of the outer ditch and an outwork, and is at right angles

to the actual passage through the bank. The most common method of

defending the entrance was to make a diagonal path, usually from right

to left, through the banks. Each bank would thus overlap the next: the

summits above the path would be broadened out into platforms, capable

of occupation by bodies of defenders; and the right flank of the

enemy, unprotected by shields, would be exposed to their missiles. The

entrance, however, might be substantially protected by giving an inward

curve to the inner bank on each side of the path; and this is a plan

very frequently employed.[3] Where outworks were specially constructed,

their form differs considerably: we have seen them employed in two ways

at Old Sarum—as a kind of horn-work thrown out in front of a passage,

and as a spur projecting at right angles in front of an entrance. In

both cases an absolutely straight approach is precluded. Occasionally,

where an approximately direct approach was permitted, it is guarded on

one side by a spur thrown out at right angles to the bank. At Blackbury

castle, an early earthwork in south Devon, the main entrance has a

straight approach guarded on either side by a triangular outwork, which

is formed by a most ingenious arrangement of banks and by prolongations

of the main ditch (7). At the actual entrance the main bank is curved

outwards, with broad platforms at the top. The hollow interiors of the

outworks might serve as guard-houses, or the attacking force could

be driven into them from the gateway of the fort, and penned in a

position from which escape was impossible. Sometimes hollows were made

in the bank or in a projecting outwork near the gateway to serve as

guard-houses. On either side of the main entrance, the bank was often

slightly raised. At least one instance is known in which the main gate

was concealed by making a break in another part of the rampart, and

raising the bank on either side. The enemy, making for this point,

would miss the real entrance, and run the risk of losing his life in a

_cul-de-sac_ purposely constructed within the rampart.

[Illustration: Blackbury Castle

(From Mr Hadrian Allcroft’s _Earthwork of England_ by kind permission

of Messrs Macmillan & Co.)]

In these fortresses, the defences of which were due to instinctive

skill in the face of constant danger, it is impossible not to recognise

how many of the most scientific features of medieval fortification

were anticipated. The concentric plan of Caerphilly castle (270), with

its easy provisions of egress, and its difficulty of access; the spurs

which guard the approaches to Beaumaris (277) and Conway castles; the

barbicans which form so prominent a defence of Alnwick castle (243),

and the gateways of York have prototypes, of which their engineers were

probably unconscious, in the huge earthworks of prehistoric Britain.

Through a long interval, in which military art pursued a very gradual

evolution, the wheel came full circle. The devices of the earthwork

builders were translated into stone with far greater economy of labour.

Although the most conspicuous examples of early earthwork are found in

hill fortresses, camps were not confined to hilly sites, nor were their

defences always composed of earthwork. There are districts where the

hard nature of the soil forbade the construction of earthen banks and

fosses; and consequently there are many camps which are surrounded by

walls of rough uncemented stone, originally kept in place by facings

and bondings of larger and smoother stones.[4] These camps are usually

not large. They occur very commonly in the north of England: a good

example is that known as the Castles, in the valley of the Bedburn,

seven or eight miles west of Bishop Auckland. The enclosure, situated

on a boggy slope, is surrounded by shapeless masses of _débris_, the

ruins of the dry-built ring wall, which has lost its facing and so

has fallen to pieces. Stone was also used in the ramparts of some of

the camps on the rocky hills of Somerset, as in the camps on either

side of the Avon at Clifton. The great fortress of Worlebury, above

Weston-super-Mare, was surrounded by an immense wall of uncemented

stone, brought to great thickness by building several walls, each with

its own set of facing stones, up against each other. On its eastern

front, separated from the main rampart by a deep ditch, cut in the

solid rock, was another wall of stone; and this again was protected by

a series of outer earthworks (9). Dolebury, at the western extremity

of the Mendips, is surrounded by a double wall of loose limestone.[5]

In these cases, as in the Welsh strongholds of Penmaenmawr and Tre’r

Ceiri, geological conditions made the earthen bank an impossibility,

and the stone of the neighbourhood took its place.

[Illustration: Worlebury

(From Mr Hadrian Allcroft’s _Earthwork of England_, by kind permission

of Messrs Macmillan & Co.)]

It has often been argued that these prehistoric fortresses were merely

places of refuge, to which, in time of war, the dwellers in the levels

below betook themselves and their flocks. But it is much more probable

that they were the permanent habitations of communities, not merely

camps, but fixed settlements, chosen for habitation on account of their

strong position, and gradually fortified by labour which may have been

the work, in the more elaborate examples, of many generations. The

need of permanent protection for themselves and their flocks and herds

seems to have been felt by the early inhabitants of Britain to such an

extent that their regular settlements naturally took the semblance

of fortified camps. This is very evident in the case of those camps

which are found in positions where the natural advantages are very

small—positions which might be chosen by people in search of an abode,

but would hardly be chosen merely as a refuge. Camps in these positions

are never so imposing as those which crown hill-tops: the labour of

excavating the ditches and heaping up the banks was not aided by the

natural slope of a hill, and the earthworks, being slighter and nearer

the more recent haunts of men, are more liable to destruction. But the

defensive nature of such settlements is unmistakable.

The Roman invaders brought to England new methods of military

construction and the tradition of an architecture of dressed and

cemented stone. Their whole system of warfare was far in advance of

that pursued by the British tribes. They had developed the art of

siege to a high pitch. Their operations in open field were orderly and

scientific. Their walled strongholds were constructed with a view which

took into account, not only the mere strength of the ramparts, but

also the capacity of the defenders to man them. Men, not fortresses,

were the main asset of Roman warfare; and consequently their earthwork

was far less imposing than that of the Britons of the prehistoric age.

Their camps and permanent stations were usually surrounded by a single

fosse of no great depth: the rare cases in which traces remain of more

than a single fosse are camps upon the exposed northern frontier of

Roman Britain, where the onrush of the barbarian enemy was stayed by

a series of trenches, either covered with brushwood or filled with

sharp stones or stakes. Camps were hastily constructed of earthwork;

bank, ditch, and parapet playing their part. But where a camp became

a permanent station a stone wall took the place of the earthen bank.

The most important relic of the Roman occupation in Britain, the great

frontier wall from the Tyne to the Solway, was preceded by a _vallum_

of turf, a temporary defence which was superseded by permanent masonry.

No system of connected operations can be traced between prehistoric

forts. Each of these was probably an isolated stronghold. Roman

stations, on the other hand, were military posts manned by detachments

of one army, and connected by strategic roads. This is seen very

clearly in the case of the great wall already mentioned. The wall can

be traced for about 73 miles, from Wallsend (Segedunum) on the Tyne

to Bowness on the Solway. It is built in the usual Roman method, with

a core of cemented rubble between ashlar facings. Its breadth varies

between 7 and 9½ feet: the height appears to have been originally

from 16 to 18 feet.[6] Its northern face is defended by a ditch, marked

_a_ in the section below; but, as it follows the highest ground in its

course, and runs for some distance along the edge of basaltic cliffs

which dip northward, the ditch at these points becomes unnecessary and

is dispensed with. There were twenty-three stations in its length,

each garrisoned by a cohort of infantry or squadron of cavalry, chosen

from the Roman auxiliary troops of Gauls, Spaniards, Moors, &c.[7]

These were connected by a paved military road (_c_) along the south

side of the wall. At distances of a Roman mile from one another were

placed rectangular forts, now known as mile-castles, built against

the wall upon its south side; and the interval between each of these

was strengthened further by turrets, apparently two in number, which

also projected southward, but encroached slightly upon the thickness

of the wall. The south side of the military road was defended by an

earthen _vallum_, marked _d_,[8] the course of which is not directly

parallel to the wall, but is in places as much as half a mile distant,

keeping to lower ground where the wall prefers the summit of the basalt

ridge. This bank has a ditch (_e_) on its southern side, divided from

it by a level space or berm: the ditch has a southern parapet (_f_),

and another bank beyond (_g_). In certain places the ditch has also a

northern parapet; but the general arrangement of the earthen ramparts

is as described. Of the controversy as to the relative date of the wall

and its flanking earthworks nothing need be said here. Its military

purpose is abundantly clear. It provided not only a strong means of

defence against the attacks of the northern tribes, but a base of

operations for offensive warfare. Each of the stations and mile-castles

has a northern gateway in addition to its other entrances; and two of

the Roman roads which met the wall at intervals from the south passed

through it on their way to the Scottish border.

[Illustration: Section of Roman Wall and _Vallum_.]

The object of the great system of Roman roads was purely military.[9]

Along these broad paved “streets” the troops from the various stations

could be mobilised with great quickness. They kept as a rule to high

ground, choosing a convenient ridge, like that which runs from end to

end of Lincolnshire, and preserving as straight a line as possible.

The most important stations were placed at the crossing of rivers or

at the junction of roads. In the early days of the Roman occupation,

the operations of the army were directed entirely against the native

tribes. No system of coast defence was adopted. The necessity for

this came later, when Britain, under Roman dominion, was attacked by

bodies of Saxon pirates. A chain of fortresses was then constructed

along what was known as the Saxon shore, from Branodunum (Brancaster)

in north Norfolk to Portus Adurni in Sussex or Hampshire. The remains

of the walls of Gariannonum (Burgh Castle in Suffolk), Rutupiae

(Richborough in Kent), Anderida (Pevensey in Sussex), and Portus Magnus

(Porchester in Hampshire), are, next to the great wall, perhaps the

most interesting relics of the Roman epoch which we possess. The forts

of the Saxon shore were placed, for the most part, at the mouths of

estuaries, for which the foreign pirates would naturally make.

[Illustration: Cilurnum]

In several cases a Roman station was founded on the site of a British

settlement. It was, however, more compact in plan, and occupied only

a portion of the site. The earthworks defending the west side of the

settlement which preceded Camulodunum (Colchester) are two to three

miles beyond the Roman wall of the city, which occupied merely the

north-east angle of a very large and straggling enclosure. The original

Roman station at Lincoln may be taken as a typical example of a walled

town of this epoch.[10] It was a rectangular enclosure, with its longer

axis from east to west, occupying the south-west angle of the high

ridge above the valley of the Witham. In each of the four walls was a

gateway. The inner arch and the postern, with part of the side walls,

of the northern gateway still remain, and of the southern gateway there

are still substantial fragments; the line of the street which led from

one to the other is still fairly, though not accurately, preserved.

The positions of the east and west gateways are known: the line of the

street from the east gate to the centre of the city was deflected in

the middle ages, but its continuation to the west gate is represented

by the course of a street, much widened in modern times. Close to the

meeting of the four streets was the market-place or _forum_. This, in

the early days of Roman Lincoln, was the _praetorium_, or military

headquarters of the camp. But the legion quartered at Lincoln was

removed to York, as it seems, in the time of Vespasian, and the city

settled down to a civil and commercial existence. Round the _forum_

were clustered the chief public buildings of the city, and the

foundations of a large colonnaded building are still to be seen below

the present ground level. At Gloucester, Chichester, and Chester, the

course of the four main streets has been little, if at all, disturbed,

and their present meeting-place nearly represents the centre of the

Roman city. The arrangements of the _forum_ of a Romano-British town

have been made out very clearly by the excavations at Calleva Atrebatum

(Silchester) in Hampshire.[11] It was a closed rectangle, entered by

a gateway and surrounded by public buildings, in front of which were

colonnades; one side at Silchester was occupied by a great basilica,

which served the purposes of a hall of justice and mercantile exchange.

[Illustration: Borcovicus]

The stations on the Roman wall were of a more purely military character

than the towns which have been mentioned. They have the general

characteristic of a rectangular plan, with the angles rounded off, and

with a gateway, flanked by guard-houses, in each of the four sides. In

the two largest stations, however, Amboglanna (Birdoswald) and Cilurnum

(Chesters), there were, in addition to the main gateways, two smaller

gateways in the east and west walls respectively.[12] The walls of

the stations are generally 5 feet thick, and are built, like the wall

itself, of a core of cemented rubble, with facings of dressed stone.

The main gateways have a double passage, divided by a longitudinal

wall, which is pierced by a narrow passage in the centre. Their inner

and outer openings were spanned by arches, and closed by gates which

were hung on iron pivots fixed in the jamb of each opening next the

wall. At Borcovicus (Housesteads) there was no dividing wall through

the passage between the outer and inner openings of the gateway; but

each of these openings is composed of two arches, divided by a square

pier (15).[13] Each gateway had a stone sill, raised above the level

of the stone pavement. The interior passage was flanked by rectangular

guard-houses. The gateways of Borcovicus show interesting signs of

reconstruction, which point to the fact that, not long after its

construction, the station was seized by an enemy. At a subsequent time,

its Roman occupants reduced the width of the gateways by walling up

one half of the double openings. This was done apparently at different

times, the east gateway bearing signs of being treated in this way

at an earlier period than the others. The west gateway was walled up

with great ingenuity. Of its outer entrances, the northern, and of its

inner entrances, the southern, were blocked; so that a foe, choosing

this face of the station for attack, had to press his way through an

elbow-shaped, instead of a straight passage.

[Illustration: Borcovicus; West Gateway]

[Illustration: Pevensey]

The wall of a Roman station, between the gateways, was often flanked

by a series of towers, each projecting from the wall in the form of

a semicircle or rather more than a semicircle. This was the case

in some of the large Gallo-Roman cities, like Autun.[14] While the

rounded form of these towers made them difficult to undermine or

batter down, their summits served as standing-ground for the large

_ballistae_ or catapults, from which javelins or stones could be

hurled upon the attacking force. Their projection at regular intervals

made it possible for the defenders to command the whole line of wall

between each pair of towers; so that the besiegers’ attack would

necessarily be concentrated upon the towers themselves. At Pevensey

(16), where the enclosure of the station is almost oval, and not, as

usual, rectangular, in shape, there are remains of twelve solid round

towers, including those which flank the south-western gateway. At

Burgh Castle there are four towers in the east wall, two of which are

angle-towers.[15] Owing to the scarcity of good building stone in the

district, the walls at Burgh Castle are unfaced, and are built of flint

with bonding courses of tiles; only the upper portions of the towers

were bonded into the walls. A bed of concrete, with a platform of oak

planks above, formed the foundation of the towers.[16] The angles of

the wall of Roman York were strengthened by large polygonal towers. A

large portion of one of these, a magnificent example of Roman masonry,

remains; it formed the north-western angle of the city, and was hollow,

with an internal as well as an external projection (17). No outward

projections appear to occur upon the Roman wall or in the walls of

its stations. The “mile-castles,” as already noted, are built against

the inner side of the wall. At Cilurnum (13) and Borcovicus there

are foundations of square towers against and inside the containing

walls, while the angles of the stations are simply rounded off. The

western part of the north wall of Borcovicus has also been doubled in

thickness, apparently to give a safe foundation for a large catapult

planted on the top of the wall. The thickening was accomplished, at

a date later than the original building, by constructing an inner

wall, and filling up the space between this and the outer rampart with

clay. At Cilurnum, which appears to have been in existence before the

great frontier wall was made, the original east and west gateways were

left on the north side of the wall, which intersects the station.

As they were thus insufficiently protected, they were filled up

solid with masses of rubble, and were probably used as platforms for

catapults,[17] smaller gateways being made on the south side of the

wall.

[Illustration: York; Multangular Tower]

[Illustration: Borcovicus; Praetorium]

In the interior of the station, as at Lincoln, York, and Borcovicus,

the main street, or _via principalis_, led directly from the north

to the south gate.[18] The centre of the station, west of the _via

principalis_, was occupied by the _praetorium_, the headquarters

of the commander of the legion, answering to the space where, in a

temporary camp, the tents of the general and his staff were pitched.

As we have seen, the place of the _praetorium_ was taken in commercial

towns by the _forum_. The _praetorium_ at Borcovicus consisted of two

rectangular courts, open to the sky in the centre. The outer court,

with its main entrance facing the eastern street or _via praetoria_,

was surrounded on three sides by a colonnade. A doorway, immediately

opposite the main entrance, opened into the eastern colonnade of the

inner court. This had no northern or southern colonnades, but had

doorways to north and south: its western side was occupied by a line

of five rectangular chambers, the central one of which was the chapel

where the standards, with the other sacred treasures belonging to the

cohort,[19] were kept. The _praetorium_ faced the eastern street of

the station, which led to the east gate or _porta praetoria_. The gate

at the end of the western street was called _porta decumana_.[20]

The remaining buildings of the station consisted of straight blocks,

intersected by lanes: the majority of these buildings would be used as

barracks. It should be noted that, in the planning of a Roman station

or walled town, the _praetorium_ or _forum_ was taken as the central

point: the _via principalis_, in order to run clear from gate to gate,

was thus on one side of an axis of the rectangle, and the north and

south gates[21] were not in the centre of their respective walls.

It is clear that, as time went on and the power of Rome in Britain

grew weaker, the defensive character of the great wall and that of the

stations which it connected were emphasised at the expense of their

character as bases of active warfare. But it must be repeated that

Roman stations in Britain were not planned to form impregnable shelters

for communities mainly pastoral. They were centres for bodies of

fighting men, linked to each other by a splendid system of roads. The

Roman station at Dorchester, the lines of which are so well preserved

to-day, was founded, not within the ramparts of Maiden Castle or

Poundbury, but on the lower slopes near the passage of the Frome. The

single rampart and single ditch of a Roman town were almost invariable.

Free egress as well as entrance, provisions for attack as well as

defence, were necessary; and, with these objects in view, immense

earthen defences, such as those of Maiden Castle, would be cumbersome.

Bodies of Roman troops, as at Lincoln or Colchester, occasionally

occupied part of the _enceinte_ of a British settlement; but it is very

rarely that, as in the case of Old Sarum, we find a British hill fort

which also probably served as a Roman station. In this instance, the

occupation of the fort was due, doubtless, to its neighbourhood to the

military road: the road would not have been brought out of its way to

include the fort in its course. Roman stations, although they differed

in size, were small and compact, when contrasted with the large and

straggling areas occupied by the British settlers. Suburbs naturally

grew up outside their walls, and sometimes, although not very often,

the walled enclosure was extended to include a growing outer district.

This is supposed by many antiquaries to have happened at Lincoln, where

the original Roman station occupied the summit of the hill north of

the great bend of the Witham, which here turns from its northerly

course due eastward. After the city of Lincoln had settled down to

civil life, practically the whole slope of the hill south of the first

_enceinte_ was included within the city and encircled by a wall.

Part of the east wall of this later enclosure is still visible: the

Stonebow, the medieval south gate of the city, about a hundred yards

from the river and the bridge, appears to be on the site of the later

south gateway of Roman Lincoln.[22]

Military Architecture in England During the Middle Ages · 第 1 / 13 章