Note 90 — Chapter III · THE CONQUEST OF MAINE AND THE BRETON WAR

William of Poitiers (109–112) is the sole authority for this war and he gives no dates. He definitely asserts the presence of Harold and his companions in the Norman army, and his narrative contains nothing irreconcilable with the relevant scenes in the Bayeux tapestry. The war was probably intended to enforce Norman suzerainty over Brittany, and the rising of Rhiwallon of Dol probably gave William his opportunity. De la Borderie, Histoire de Bretagne, iii., p. [missing].