Columbia subject headings:
Great Britain--History--Henry VII, 1485-1509.
Great Britain--History--Lancaster and York, 1399-1485.
Harvard subject headings:
Great Britain--History--Henry VII, 1485-1509.
Great Britain--History--Lancaster and York, 1399-1485
Patronage, Political--England--History.
Princeton subject headings:
Great Britain--Politics and government--1399-1485.
Great Britain--Politics and government--1485-1509.
Patronage, Political--Great Britain--History.