Columbia subject headings:
Catholic Church--Clergy.
Gropper, Johannes, 1503-1559.
Priesthood--History of doctrines.
Harvard subject headings:
Catholic Church--Clergy.
Gropper, Johannes, 1503-1559.
Priesthood--History of doctrines
Princeton subject headings:
Catholic Church--Clergy.
Gropper, Johannes, 1503-1559.