Columbia subject headings:
Harvard subject headings:
John I, King of Portugal, 1357-1433--Sources.
Lisbon (Portugal). Arquivo Municipal.
Portugal--History--John I, 1385-1433--Sources.
Princeton subject headings:
John I, King of Portugal, 1357-1433--Sources.
Lisbon (Portugal). Arquivo Municipal
Portugal--History--John I, 1385-1433--Sources.