Columbia subject headings:
Byzantine Empire--Church history.
Caesaropapism--History.
Church and state--Byzantine Empire--History.
Emperors--Byzantine Empire.
Harvard subject headings:
Princeton subject headings:
Byzantine Empire--Church history.
Caesaropapism--History.
Church and state--Byzantine Empire--History.
Church history--Byzantine Empire.
Emperors--Byzantine Empire.
Orthodox Eastern Church--History.