Remarks:
Seingeur of Mortemer-sur-Eaulne in Normandy. He was one of the Norman leaders at the battle of Mortemer in 1054, but having assisted the escape of one of the French prisoners, Ralph, count of Montdidier, to whom he had done homage, he was exiled and his lands confiscated. He was afterwards reconciled to duke William and some of his lands were restored to him, though not Mortemer, which had been given to his consanguineus, William de Warenne. Saint-Victor-en-Caux thereupon became the caput of the Norman honor of the family. He is said to have founded the abbey of Saint-Victor-en-Caux. He was living in 1078 but dead in 1086, when his son Ralph appears in Domesday book.