Columbia subject headings:
Harvard subject headings:
Great Britain--History--House of York, 1461-1485.
Great Britain--History--Richard III, 1483-1485
Richard III, King of England, 1452-1485.
Princeton subject headings:
Great Britain--History--Richard III, 1483-1485.
Great Britain--Kings and rulers--Biography.
Richard III, King of England, 1452-1485.