Columbia subject headings:
Catholic Church. Diocese of Trani--History.
Gregory XI, Pope, 1329-1378.
Knights of Malta--Italy--History.
Harvard subject headings:
Catholic Church. Diocese of Trani (Italy)
Gregory XI, Pope, 1329-1378.
Hospitalers--Italy--Trani--History.
Military religious orders--Italy--Trani--History.
Princeton subject headings: