Columbia subject headings:
Harvard subject headings:
Philippa, of Lancaster, Queen, consort of John I, King of Portugal, 1360-1415.
Portugal--History--John I, 1385-1433.
Portugal--Kings and rulers--Biography.
Princeton subject headings:
Philippa, of Lancaster, Queen, consort of John I, King of Portugal, 1360-1415.
Portugal--History--John I, 1385-1433.
Portugal--Kings and rulers--Biography.