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Male William De Fiennes Click to view William De Fiennes in the family tree

William De was born about 1245 in Wendover, Buckinghamshire, England.  William De's father was Enguerran Ingelram De Fiennes and his mother is Isabel Conde.  His paternal grandparents were William De Fiennes and Agnes De Dammartin; his maternal grandfather is James De Conde and his maternal grandmother was Agnes De Roeux. He had a half-sister named Maud De.  He died on July 11th, 1302 in Courtral, Flandre, Occidential, Belgium.


William De's family with Blanche De Brienne

‌William De and Blanche De were married in a religious ceremony in 1269 in Wigmore, Herefordshire, England.  They had a son and a daughter, named John De and Margaret De.

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