Columbia subject headings:
Harvard subject headings:
Portugal--Colonies--Administration--History--Congresses.
Portugal--Politics and government--1580-1640--Congresses.
Power (Social sciences)--Portugal--History--Congresses.
Princeton subject headings:
Portugal--Colonies--Administration--History--Congresses.
Portugal--Politics and government--1580-1640--Congresses.
Power (Social sciences)--Portugal--History--Congresses.