Columbia subject headings:
Alagoas (Brazil)--History.
Brazil--History--Empire, 1822-1889.
Pernambuco (Brazil)--History.
Harvard subject headings:
Alagras, Brazil (State)--History
Brazil--History--Empire, 1822-1889.
Pernambuco (Brazil)--History.
Princeton subject headings:
Alagras, Brazil (State)--History
Brazil--History--Empire, 1822-1889.
Pernambuco (Brazil)--History.