Columbia subject headings:
Charities--Byzantine Empire.
Charity.
Philanthropists--Byzantine Empire.
Public welfare--Byzantine Empire.
Harvard subject headings:
Charities--Byzantine Empire.
Charity.
Philanthropists--Byzantine Empire.
Public welfare--Byzantine Empire.
Social history--Medieval, 500-1500
Princeton subject headings:
Charities--Byzantine Empire.
Charity.
Philanthropies--Byzantine Empire.
Public welfare--Byzantine Empire.