Gervase of Blois 12th-century Abbot of Westminster Abbey (d. 1160) Parents Stephen, King of England Dameta de Normandie Children Siblings Eustace IV, Count of Boulogne William I, Count of Boulogne Marie I, Countess of Boulogne Almaric (?) William (?) Ralph (?) Sybilla (?) Matilda de Blois Baldwin de Boulogne