Columbia subject headings:
Catholic Church--Bishops.
Episcopacy.
Papacy--Early works to 1800.
Harvard subject headings:
Albrecht, of Brandenburg, Archbishop and Elector of Mainz, Cardinal, 1490-1545.
Catholic Church--Controversial literature--Early works to 1800.
Episcopacy--Early works to 1800.
Halle an der Saale (Germany)--Church history--Sources.
Papacy--Early works to 1800
Popes--Temporal power--Early works to 1800
Princeton subject headings: