Columbia subject headings:
Church and state--Germany--History--Congresses.
City and town life--Germany--History--To 1500--Congresses.
Civilization, Medieval--Congresses.
Germany--Church history--843-1517--Congresses.
Harvard subject headings:
Cities and towns--Germany--History--Congresses.
City churches--Germany--History--Congresses.
Germany--Church history--843-1517--Congresses.
Sociology, Urban--Germany--History--Congresses.
Princeton subject headings:
Cities and towns--Germany--History--Congresses.
City churches--Germany--History--Congresses.
Germany--Church history--843-1517--Congresses.
Sociology, Urban--Germany--History--Congresses.