Columbia subject headings:
Germany--Church history--16th century--Congresses.
Reformation--Germany--Congresses.
Harvard subject headings:
Germany--Church history--16th century--Congresses.
Reformation--Germany--Congresses.
Princeton subject headings:
Church and state--Germany--History--Congresses.
Germany--Church history--Congresses.
Reformation--Germany--Congresses.
Reformed Church--Germany--History--Congresses.