Columbia subject headings:
St. Kolumba (Church : Cologne, Germany)--Archives.
St. Kolumba (Church : Cologne, Germany)--History--Sources.
Harvard subject headings:
St. Kolumba (Church : Cologne, Germany)--Archives.
St. Kolumba (Church : Cologne, Germany)--History--Sources.
Princeton subject headings:
Catholic Church--Germany--Cologne--History--Sources.
Catholic Church. Archdiocese of Cologne (Germany)--History--Sources.
Church archives--Germany--Cologne.
Church records and registers--Germany--Cologne--History--To 1500--Sources.
Church records and registers--Germany--Cologne.
Cologne (Germany)--Church history--Sources.
St. Columba (Parish : Cologne, Germany)--Archives.
St. Columba (Parish : Cologne, Germany)--History--Sources.