Family/Spouse: Enguerrand Ingelram DE FIENNES. Enguerrand (son of Eustache II "the Old" and ? UNKNOWN) was born about 1192 in Bucks, England; died in 1267. [Group Sheet] [Family Chart]
William married Blanche DE BRIENNE in 1269. Blanche (daughter of Jean DE BRIENNE and Marie DE COUCY) was born about 1245 in Courtrain, Mynn, France; died in 1302. [Group Sheet] [Family Chart]