Columbia subject headings:
Harvard subject headings:
Balance of power--History--To 1500--Congresses.
Cities and towns--Germany--History--To 1500--Congresses.
Magdeburg (Germany)--History--Congresses.
Magdeburg (Germany)--Politics and government--Congresses.
Peace treaties--History--To 1500--Congresses.
Princeton subject headings:
Church and state--Germany--Magdeburg.
Magdeburg (Germany)--History--15th century.
Magdeburg (Germany)--Politics and government--15th century.