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

William I was born about 1170 in Buckinghamshire, England.  William I's father was Enguerrand De Fiennes and his mother is Sybilla Bologne De Tyngrie.  His paternal grandfather is Eustace II De Fiennes; his maternal grandfather was Faramus De Boulogne De Tyngrie and his maternal grandmother is UNKNOWN Mathilda.  He was an only child.  He died in 1241 in Palestine.


William I's family with Agnes en Goelle De Dammartin

They had three sons and a daughter, named Ingelram, Mahaut, William De la Plaunche and Michel.

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