Columbia subject headings:
Harvard subject headings:
Henrique, King of Portugal, 1512-1580.
Portugal--History--Henrique, 1578-1580.
Portugal--History--Sebastião, 1557-1578.
Sebastião, King of Portugal, 1554-1578.
Princeton subject headings:
Henrique, King of Portugal, 1512-1580.
Portugal--History--Henrique, 1578-1580.
Portugal--History--Sebastião, 1557-1578.
Sebastião, King of Portugal, 1554-1578.