[b] GEOFFREY DE VILLEHARDOUIN, _Histoire de la conquête de
Constantinople_.
[c] ERNEST LAVISSE AND ALFRED RAMBAUD, _Histoire générale du IVe siècle à
nos jours_.
[d] J. F. MICHAUD, _History of the Crusades_ (translated from the French
by W. Robson).
[e] C. DU F. DUC CANGE, _Histoire de l’empire de Constantinople sous les
empereurs français_.
[f] EDWARD GIBBON, _op. cit._
[g] GEORGE FINLAY, _The History of Greece from its Conquest by the
Crusaders to its Conquest by the Turks, and of the Empire of Trebizond_.