Columbia subject headings:
Cologne (Germany)--History--Sources.
Teutonic Knights. Commandery of Cologne--History--Sources.
Harvard subject headings:
Archives--Germany--Cologne--Registers.
Cologne (Germany)--History--Sources.
Deutschordenszentralarchiv--Registers.
Katharinenkloster (Cologne, Germany)--Registers.
Teutonic Knights. Commandery of Cologne--History--Sources.
Teutonic Knights. Commandery of Cologne--Registers.
Princeton subject headings:
Archives--Germany--Cologne--Registers.
Cologne (Germany)--History--Sources.
Deutschordenszentralarchiv--Registers.
Katharinenkloster (Cologne, Germany)--Registers.
Teutonic Knights. Commandery of Cologne--History--Sources.
Teutonic Knights. Commandery of Cologne--Registers.