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

William De was born in 1185 in Buckinghamshire, England.  William De's father was Enguerrand I De Fiennes and his mother was Sibyl De Boulogne.  His paternal grandparents were Eustace II De Fiennes and Anne De Dreux; his maternal grandparents were Pharamus De Boloin De Tingrie and Matilda. He had four brothers named Ingelram De, John De, Thomas De and Eustache De.  He was the youngest of the five children.  He died about 1241 in Holy Land.


William De's first family with Agnes De Dammartin

‌William De and Agnes De were married in a religious ceremony about 1198 in Martock, Somersetshire, England.  They had three sons and three daughters, named Enguerrand II De, Baldwin De, William, Miss De, Maud De and Michel De.


William De's second family with Isabel


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