Columbia subject headings:
Elite (Social sciences)--Spain--History--To 1500--Congresses.
Nobility--Spain--History--To 1500--Congresses.
Spain--Politics and government--To 1500.
Harvard subject headings:
Elite (Social sciences)--Spain--History--To 1500--Congresses.
Nobility--Spain--History--To 1500--Congresses.
Spain--Politics and government--To 1500.
Princeton subject headings: