Columbia subject headings:
Cities and towns, Medieval--Italy--History--To 1500--Congresses.
Italy--Social conditions--1268-1559--Congresses.
Marginality, Social--Italy--History--Congresses.
Minorities--Italy--History--To 1500--Congresses.
Minorities--Italy--Social conditions--Congresses.
Social history--Medieval, 500-1500--Congresses.
Social interaction--Italy--History--To 1500--Congresses.
Harvard subject headings:
Cities and towns, Medieval--Italy--History--To 1500--Congresses.
Italy--Social conditions--1268-1559--Congresses.
Marginality, Social--Italy--History--Congresses.
Minorities--Italy--History--To 1500--Congresses.
Minorities--Italy--Social conditions--Congresses.
Social history--Medieval, 500-1500--Congresses
Social interaction--Italy--History--To 1500--Congresses.
Princeton subject headings:
Cities and towns, Medieval--Italy--History--To 1500--Congresses.
Italy--Social conditions--1268-1559--Congresses.
Marginality, Social--Italy--History--Congresses.
Minorities--Italy--History--To 1500--Congresses.
Minorities--Italy--Social conditions--Congresses.
Social history--Medieval, 500-1500--Congresses.
Social interaction--Italy--History--To 1500--Congresses.