Columbia subject headings:
Harvard subject headings:
Counter-Reformation--Congresses.
Reformation--Congresses
Princeton subject headings:
Catholic Church--Europe--History--16th century.
Catholic Church--Germany--History--16th century.
Church renewal--Catholic Church--History--16th century.
Counter-Reformation--Europe.
Counter-Reformation--Germany.
Europe--Church history--16th century.
Germany--Church history--16th century.
Reformation--Europe.
Reformation--Germany.