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