Columbia subject headings:
Harvard subject headings:
Afonso VI, King of Portugal, 1643-1683.
Portugal--History--Afonso VI, 1656-1683.
Portugal--Kings and rulers--Biography.
Princeton subject headings:
Afonso VI, King of Portugal, 1643-1683.
Portugal--History--Afonso VI, 1656-1683.
Portugal--Kings and rulers--Biography.