Columbia subject headings:
Great Britain--Politics and government--1272-1307.
Great Britain--Politics and government--1307-1327.
Great Britain--Politics and government--1327-1377.
Great Britain--Politics and government--1377-1399.
Great Britain--Politics and government--1399-1485.
Harvard subject headings:
England--Social conditions--1066-1485.
Great Britain--Politics and government--1066-1485.
Princeton subject headings:
England--Social conditions--1066-1485.
Great Britain--Politics and government--1066-1485.