Columbia subject headings:
Great Britain--Politics and government--1154-1399.
Prerogative, Royal--Great Britain.
Harvard subject headings:
Great Britain--Politics and government--1154-1399.
Prerogative, Royal--Great Britain--History--To 1500.
Prerogative, Royal--Great Britain.
Princeton subject headings:
Great Britain--Politics and government--1154-1399.
Prerogative, Royal--Great Britain.