=Source.=--_Chronicle of Adam of Usk_, edited by Sir E. Maunde
Thompson, pp. 252, 253.
In the next year, on behalf of the crown of England claimed for the
earl of March, a deadly quarrel arose between the King and the house
of Percy of Northumberland, as kin to the same earl, to the great
agitation of the realm...; and a field being pitched for the morrow
of Saint Mary Magdalene (23rd July), the King, by the advice of the
earl of Dunbar of Scotland, because the father of the lord Henry Percy
and Owen Glendower were then about to come against the King with a
great host, anticipating the appointed day, brought on a most fearful
battle against the said lord Henry and the lord Thomas Percy, then
earl of Worcester. And after that there had fallen on either side in
most bloody slaughter to the number of sixteen thousand men, in the
field of Berwick (where the King afterwards founded a hospice for the
souls of those who there fell) two miles from Shrewsbury, on the eve
of the said feast, victory declared for the king who had thus made the
onslaught. In this battle the said lord Percy, the flower and glory of
Christendom, fell, alas! and with him his uncle.... There fell also two
noble knights in the King's armour, each made conspicuous as though a
second King, having been placed for the King's safety in the rear line
of battle. Whereat the earl of Douglas of Scotland, then being in the
field with the said lord Henry, as his captive, when he heard victory
shouted for King Henry, cried in wonder: "Have I not slain two King
Henries (meaning the said knights) with mine own hand? 'Tis an evil
hour for us that a third yet lives to be our victor."