Columbia subject headings:
Baião (Porto, Portugal)--Church history.
Baião (Porto, Portugal)--History.
Baião (Porto, Portugal)--Religious life and customs.
Harvard subject headings:
Baião (Porto, Portugal)--Church history.
Baião (Porto, Portugal)--History.
Baião (Porto, Portugal)--Religious life and customs.
Portugal--History--To 1385
Princeton subject headings:
Baião (Porto, Portugal)--Church history.
Baião (Porto, Portugal)--History.
Baião (Porto, Portugal)--Religious life and customs.