Columbia subject headings:
Cities and towns, Medieval--Europe--History--Congresses.
Cities and towns--Europe--Growth--History--To 1500.
Urban archaeology--Europe.
Harvard subject headings:
Cities and towns, Medieval--Europe--History.
Cities and towns--Europe--Growth--History--To 1500.
Cities and towns--Europe.
Europe--Antiquities.
Excavations (Archaeology)--Europe
Urban archaeology--Europe.
Princeton subject headings: