Walter III of Mantes
Count of Mantes and Pontoise
(Gautier de Mantes)
Born (c1027) - Died (1063) at Falaise Castle, Normandy
He was poisoned with his wife probably by order of William the Conqueror

Father - Drogo of Mantes
Mother - Godgifu of England

Walter III married (c1050) Biota of Maine
No children