Columbia subject headings:
Europe, Eastern--Church history--16th century--Congresses.
Europe, Eastern--Church history--17th century--Congresses.
Reformation--Europe, Eastern--Congresses.
Harvard subject headings:
Europe, Eastern--Church history--16th century--Congresses.
Europe, Eastern--Church history--17th century--Congresses.
Reformation--Europe, Eastern--Congresses.
Princeton subject headings: