Columbia subject headings:
Harvard subject headings:
Monarchy--Spain--History--16th century.
Spain--Colonies--Latin America--Administration.
Spain--Colonies--Latin America--Discovery and exploration.
Spain--Politics and government--1516-1700.
Princeton subject headings:
Monarchy--Spain--History--16th century.
Spain--Colonies--Latin America--Administration.
Spain--Colonies--Latin America--Discovery and exploration.
Spain--Politics and government--1516-1700.