Columbia subject headings:
Charities--Germany--Frankfurt am Main--History.
Charities--Germany--History.
Institutional care--Germany--Frankfurt am Main--History.
Social history--Medieval, 500-1500.
Harvard subject headings:
Charities--Germany--Frankfurt am Main--History.
Charities--Germany--History.
Institutional care--Germany--Frankfurt am Main--History.
Princeton subject headings:
Charities--Germany--Frankfurt am Main--History.