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Male Guillaume II De Fiennes Sir Click to view Guillaume II De Fiennes Sir in the family tree

Guillaume II was born about 1245 in Wendover, , Buckinghamshire, England.  Guillaume II's father was Ingelram II De Fiennes Sir and his mother is Isabel De Conde.  His paternal grandfather was Guillaume I De Fiennes and his paternal grandmother is Agnes De Dammartin; his maternal grandparents are Jacques De Conde Seigneur and () De Roeux. He had a sister named Maud.  He was the older of the two children.  He died on July 11th, 1302 in Battle of, Courtain, , France.  He was buried in 1302.


Guillaume II's family with Blanche De Brienne

‌Guillaume II and Blanche were married in a religious ceremony in 1269.  They had a son and a daughter, named Jean and Margaret.

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