Columbia subject headings:
Harvard subject headings:
Johann Friedrich I, Kurfürst von Sachsen, 1503-1554--Congresses.
Reformation--Germany--Saxony--Congresses.
Saxony (Germany)--Church history--16th century--Congresses.
Saxony (Germany)--History--1423-1815--Congresses.
Princeton subject headings:
Johann Friedrich I, Kurfürst von Sachsen, 1503-1554--Congresses.
Reformation--Germany--Saxony--Congresses.
Saxony (Germany)--Church history--16th century--Congresses.
Saxony (Germany)--History--1423-1815--Congresses.