Robert D'Oyly

Photo of a castle tower constructed of stone
Oxford Castle, built under D’Oyly’s orders in 1071

Robert D'Oyly (also spelt Robert D'Oyley de Liseaux, Robert Doyley, Robert de Oiley, Robèrt d'Oilly, Robert D'Oyley and Roberti De Oilgi) was a Norman nobleman who accompanied William the Conqueror on the Norman conquest, his invasion of England. He died in 1091.