Columbia subject headings:
Cities and towns, Medieval--Germany--Regensburg.
Regensburg (Germany)--Church history.
Yeshivas--Germany--Regensburg--History.
Harvard subject headings:
Cities and towns, Medieval--Germany--Regensburg--Congresses.
Regensburg (Germany)--Church history--Congresses.
Yeshivas--Germany--Regensburg--History--Congresses.
Princeton subject headings: