Isabeau de Craon

Isabeau de Craon (c. 1330–1394), daughter of Maurice VII de Craon and Marguerite de Mello, was the sister and sole heiress of Amaury IV de Craon, inheriting the barony of Craon in 1373. Betrothed as a child to Guy XI de Laval in 1339, she received dower lands at Acquigny after his death in 1348, although it is uncertain whether the marriage ever took place.

She then married Louis de Sully, an English partisan, and in 1376 sought the protection of Louis I, Duke of Anjou, against him. Her daughter Marie de Sully inherited Craon. Isabeau died in February 1394 and was buried at Angers.