• William, Count of Boulogne and Earl of Surrey - Isabel de Warenne, 4th Countess of Surrey
William, Count of Boulogne and Earl of Surrey
Death: 11 October 1159, Toulouse, France
Father: Stephen of Blois
Mother: Matilda of Boulogne
Marriage: 1148 - Isabel de Warenne, 4th Countess of Surrey
NOTES: William was the third son of King Stephen and assumed the title Count of Boulogne after his elder brother's death in 1153. He had married Isabel de Warenne, 4th Countess of Surrey, in 1148. They had no children before his death in 1159. Stephen's surviving son had never expected to be King, and provision was made for him to inherit all of Stephen's baronial lands in the Treaty of Wallingford. When Henry II came to the throne he confirmed William's status as Earl of Surrey by right of his wife. In Boulogne, William was succeeded by his sister Mary as Countess of Boulogne after his death.