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Male William I (Count of Boulogne) Click to view William I (Count of Boulogne) in the family tree Click to view William I (Count of Boulogne) in the family tree View timeline for this person's branch of the family tree

William I was born in 1137.  William I's father was Stephen I (King of England) and his mother was Mathilda of Boulogne.  His paternal grandparents were Stephen (Etienne) (Count of Blois) and Adela of Normandy; his maternal grandparents were Eustace III (Count of Boulogne) and Mary of Scotland. He had four brothers named Eustace IV, Marie, Baudoin and Mahaut.  He died at the age of 22 in 1159.



Family Details of William I's family with Isabel de Warenne

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