S. Reynolds, Fiefs and Vassals: The Medieval Evidence Reinterpreted (Oxford, 1994).
581
Анна Комнина. С. 364–372. О присягах см.: J. Pryor, 'The oath of the leaders of the Crusade to the emperor Alexius Comnenus: Fealty, homage', Parergon New Series 2 (1984), pp. 111–41.
