Columbia subject headings:
Great Britain--History--Anglo-Saxon period, 449-1066.
Great Britain--History--Medieval period, 1066-1485.
Harvard subject headings:
Great Britain--History--Anglo Saxon period, 449-1066.
Great Britain--History--Medieval period, 1066-1485.
Princeton subject headings:
Great Britain--History--Anglo-Saxon period, 449-1066.
Great Britain--History--Medieval period, 1066-1485.