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Male William de Blois , 4th Earl of Surrey Click to view William de Blois , 4th Earl of Surrey in the family tree

William de was born in Blois, Loir-et-Cher, Orleanais/Centre, France.  William de's father was Stephen I de Blois King of England and his mother was Matilda Countess of Boulogne.  His paternal grandparents were Stephen "Le Sage" Comte de Champagne & Blois and Adela of Normandy , Princess of England; his maternal grandparents were Eustace III Count of Boulogne and Mary Princess of Scotland. He had a brother and a sister, named Eustace IV Count of and Mary de. He had a half-sister named Sibylla.  He died in October 1159 in Hospital of Montmorillon, Poitou, France.


William de's family with Isabel de Warenne , Heiress of Surrey

‌William de and Isabel de were married in a religious ceremony in 1st husband.

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