Columbia subject headings:
Feudalism--Spain.
Social history--Medieval, 500-1500.
Spain--History--711-1516.
Spain--Social conditions--To 1800.
Harvard subject headings:
Feudalism--Spain
Spain--History--711-1516.
Spain--Social conditions--To 1800.
Spain--Social conditions.
Princeton subject headings:
Feudalism--Spain.
Social history--Medieval, 500-1500.
Spain--History--711-1516.
Spain--Social conditions--To 1800.