Columbia subject headings:
Cities and towns, Ancient--Italy.
Italy--History--476-774.
Italy--History--To 476.
Harvard subject headings:
Cities and towns, Ancient--Italy--Congresses.
Cities and towns--Italy--History--To 1500--Congresses.
Italy--History--476-774--Congresses.
Italy--History--To 476--Congresses.
Urbanization--Italy--History--Congresses.
Princeton subject headings:
Cities and towns--Italy--History--To 1500--Congresses.
Urbanization--Italy--History--Congresses.