Columbia subject headings:
Catholic Church. Archdiocese of Paderborn (Germany)--Bishops.
Catholic Church. Archdiocese of Paderborn (Germany)--History--Middle Ages, 600-1500.
Investiture--History.
Paderborn (Germany)--Church history--Middle Ages, 600-1500.
Harvard subject headings:
Catholic Church. Archdiocese of Paderborn (Germany)--History.
Princeton subject headings: