Columbia subject headings:
Civilization, Medieval--Germany--Cologne.
Cologne (Germany)--Church history--Middle Ages, 600-1500.
Germany--Civilization.
Harvard subject headings:
Charities--Germany--Cologne--History--To 1500.
Civilization, Medieval.
Cologne (Germany)--Church history--Middle Ages, 600-1500.
Cologne (Germany)--Church history.
Cologne (Germany)--Civilization.
Germany--Civilization.
Princeton subject headings:
Civilization, Medieval--Germany--Cologne.
Cologne (Germany)--Church history--Middle Ages, 600-1500.
Germany--Civilization.