Columbia subject headings:
Catholic Church--Relations--Orthodox Eastern Church.
Greeks--Italy--Naples--History--16th century.
Indulgences--Italy--Naples--History.
Naples (Italy)--Church history--16th century.
Orthodox Eastern Church--Relations--Catholic Church.
Harvard subject headings:
Catholic Church--Relations--Orthodox Eastern Church.
Greeks--Italy--Naples--History--16th century.
Indulgences--Italy--Naples--History.
Naples (Italy)--Church history--16th century.
Orthodox Eastern Church--Relations--Catholic Church.
Princeton subject headings:
Catholic Church--Relations--Orthodox Eastern Church.
Greeks--Italy--Naples--History--16th century.
Indulgences--Italy--Naples--History.
Naples (Italy)--Church history--16th century.
Orthodox Eastern Church--Relations--Catholic Church.