Columbia subject headings:
Europe--Relations--Latin America--Congresses.
Indians of South America--History--16th century.
Latin America--Foreign relations--Congresses.
Latin America--Relations--Europe--Congresses.
Harvard subject headings:
Latin America--Relations--Spain--Congresses.
Spain--Colonies--America--History--16th century--Congresses.
Spain--Relations--Latin America--Congresses.
Princeton subject headings: