Columbia subject headings:
Architecture, Medieval--Germany--Freiberg--Congresses.
Architecture, Medieval--Germany--Saxony--Congresses.
Cities and towns--Germany--Freiberg--Growth--History--Congresses.
Cities and towns--Germany--Saxony--Growth--History--Congresses.
Freiberg (Germany)--Buildings, structures, etc.
Freiberg (Germany)--History--Congresses.
Saxony (Germany)--History--Congresses.
Harvard subject headings:
Cities and towns, Medieval--Germany--Freiberg--Congresses.
Cities and towns--Germany--Freiberg--History--Congresses.
Freiberg (Germany)--Antiquities--Congresses.
Freiberg (Germany)--History--Congresses.
Princeton subject headings: