Columbia subject headings:
Byzantine Empire--Church history--14th century--Sources.
Byzantine Empire--History--14th century--Sources.
Byzantine Empire--History--John V Palaeologus, 1341-1391--Sources.
Constantinople (Ecumenical patriarchate)--14th century--Sources.
Isidoro I, Patriarch of Constantinople, 1347-1350.
Orthodox Eastern Church--Byzantine Empire--History--Sources.
Harvard subject headings:
Byzantine Empire--Church history--14th century--Sources.
Byzantine Empire--History--1081-1453--Sources.
Christian sects--Byzantine Empire--History--14th century--Sources.
Orthodox Eastern Church--Byzantine Empire--History--14th century--Sources.
Religious institutions--Byzantine Empire--History--14th century--Sources.
Princeton subject headings:
Byzantine Empire--Church history--14th century--Sources.
Byzantine Empire--History--14th century--Sources.
Byzantine Empire--History--John V Palaeologus, 1341-1391--Sources.
Constantinople (Ecumenical patriarchate)--14th century--Sources.
Isidoro, I, Patriarch of Constantinople, 1347-1350
Orthodox Eastern Church--Byzantine Empire--History--Sources.