Columbia subject headings:
Normandy (France)--History--To 1515.
Normans--England.
William I, King of England, 1027 or 1028-1087.
Harvard subject headings:
Princeton subject headings:
Conquerors--Great Britain--Biography.
Great Britain--History--William I, 1066-1087.
Great Britain--Kings and rulers--Biography.
Normandy (France)--History--To 1515.
Normans--England--History--To 1500.
William I, King of England, 1027 or 1028-1087.