Columbia subject headings:
Abtei Altenberg (Altenberg, Odenthal, Germany)
Abtei Marienstatt.
Abtei Siegburg.
Benediktinerabtei St. Nikolaus (Brauweiler, Pulheim, Germany)
Catholic Church--Germany--Cologne (Electorate)--History.
Catholic Church. Archdiocese of Cologne (Germany)--History.
Cologne (Electorate)--History.
Kanonissenstift St. Cyriakus (Geseke, Germany)
Reichsabtei Werden.
Harvard subject headings:
Princeton subject headings:
Catholic Church. Archdiocese of Cologne (Germany)