The dukes had given away most of their lands to secure the loyalty of their vassals; consequently, they lacked power in the duchy without the support and obedience of their vassals.
Hertsogid loobusid enamusest oma maadest, et tagada oma vasallide lojaalsus; järelikult puudus neil hertsogkonnas võim ilma vasallide toetuse ja kuulekuseta.