Turstin fitz Rolf, also known as Turstin le Blanc and Tustein fitz Rou (Old Norse: Þorsteinn Hrólfsson) played a prominent role in the Norman conquest of England and is regarded as one of the few proven companions of William the Conqueror at the Battle of Hastings in 1066. He appears to have originated from Bec-de-Mortagne, Pays de Caux, Normandy,