Columbia subject headings:
Harvard subject headings:
Brazil--History--Congresses.
Portugal--Civilization--Congresses.
Portugal--Relations--Spain--Congresses.
Rio de la Plata Region (Argentina and Uruguay)--History--Congresses.
Spain--Relations--Portugal--Congresses.
Princeton subject headings:
America--Discovery and exploration--Portuguese--Congresses.
America--Discovery and exploration--Spanish--Congresses.
Portugal. Treaties, etc. 1494 June 7--Congresses.
Portugal. Treaties, etc. 1750 January 13--Congresses.