Columbia subject headings:
Harvard subject headings:
Reformation--Germany--Hesse--16th century--Congresses.
Reformation--Germany--Rhineland-Palatinate--16th century--Congresses.
Reformation--Switzerland--16th century--Congresses.
Religion and politics--Germany--History--16th century--Congresses.
Rhine River Valley--Church history--Congresses.
Princeton subject headings:
Reformation--Germany--Hesse--16th century--Congresses.
Reformation--Germany--Rhineland-Palatinate--16th century--Congresses.
Reformation--Switzerland--16th century--Congresses.
Religion and politics--Germany--History--16th century--Congresses.
Rhine River Valley--Church history--Congresses.