Columbia subject headings:
Cities and towns, Ancient--Italy, Northern--Congresses.
Italy, Northern--Antiquities--Congresses.
Harvard subject headings:
Cities and towns, Ancient--Italy, North--Congresses.
Cities and towns, Ancient--Rome--Congresses.
Princeton subject headings:
Cities and towns, Ancient--Italy, North--Congresses.
Cities and towns, Ancient--Rome--Congresses.