Columbia subject headings:
Harvard subject headings:
Cities and towns--Italy--Montone River Valley--History--To 1500--Congresses.
Law--Italy--San Benedetto in Alpe--History--To 1500--Congresses.
San Benedetto in Alpe (Italy)--History--Congresses.
Princeton subject headings:
Montone River Valley (Italy)--Church history--Congresses.
Montone River Valley (Italy)--History--Congresses.