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Male William FitzOsbern , 1st Earl of Hereford Click to view William FitzOsbern , 1st Earl of Hereford in the family tree

William was born in 1030 in Breteuil, Eure, Normandy, France.  William's father was Osbern de Crepon , Steward of Normandy and his mother was Emma de Ivry.  His paternal grandfather was Herfast (Arfastus) de Crepon; his maternal grandparents were Ralph (Raoul) Comte d' Ivry and Albreda. He had a sister named Emma.  He was the older of the two children.  He died in Battle of Cassel, Flanders (killed).  He was buried in Abbey of Cormeilles, Normandy, France.

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