Columbia subject headings:
Harvard subject headings:
Catholic Church. Archdiocese of Trier (Germany)--History--Sources--Early works to 1800.
Trier (Germany)--History--Sources--Early works to 1800.
Princeton subject headings:
Bishops--Germany--Trier--History--16th century.
Electors (Kurfürsten)--History--16th century.
Knights and knighthood--Germany--Trier--History--16th century.
Maier, Peter, 1460?-1542.
Nobility--Germany--Trier--History--16th century.
Trier (Germany)--Politics and government--16th century.