Columbia subject headings:
Harvard subject headings:
Great Britain--Politics and government--1399-1485.
Great Britain--Politics and government--1485-1509.
Great Britain--Politics and government--1509-1547.
Ireland--Politics and government--1172-1603.
Princeton subject headings:
Great Britain--Politics and government--1399-1485.
Great Britain--Politics and government--1485-1509.
Great Britain--Politics and government--1509-1547.
Ireland--Politics and government--1172-1603.