Columbia subject headings:
Monarchy--Spain.
Spain--History--Ferdinand and Isabella, 1479-1516.
Harvard subject headings:
Ferdinand V, King of Spain, 1452-1516.
Isabella I, Queen of Spain, 1451-1504.
Spain--Politics and government--1479-1516.
Princeton subject headings:
Church and state--Spain--History.
Spain--Foreign relations--1479-1516.
Spain--History--Ferdinand and Isabella, 1479-1516.
Spain--Politics and government--1479-1516.