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