Columbia subject headings:
Great Britain--History--Anglo-Saxon period, 449-1066.
Great Britain--History--Norman period, 1066-1154.
Great Britain--History--Plantagenets, 1154-1399.
Harvard subject headings:
Great Britain--History--Anglo-Saxon period, 449-1066.
Great Britain--History--Norman period, 1066-1154.
Great Britain--History--Plantagenets, 1154-1399.
Great Britain--History--To 1485.
Princeton subject headings:
Great Britain--History--To 1485.