Columbia subject headings:
Harvard subject headings:
Cities and towns, Medieval--Congresses
Cities and towns--Europe--Growth--History--Congresses.
Cities and towns--Growth--Europe--History--Congresses.
Commerce--History--Medieval, 500-1500--Congresses.
Europe--Commerce--History--Congresses.
Europe--Economic conditions--To 1492--Congresses.
Europe--History--476-1492--Congresses.
Metropolitan areas--Europe--History--Congresses.
Princeton subject headings:
Cities and towns, Medieval--Europe--Congresses.
Commerce--History--Medieval, 500-1500--Congresses.
Economic history--Medieval, 500-1500--Congresses.
Europe--Economic conditions--To 1492--Congresses.