14th-century Byzantine monks

14th century Byzantine Greek cleric and theologian

Italian theologian

14th-century Byzantine scholar and grammarian

Patriarch of Constantinople

Byzantine-Greek monk

Ecumenical Patriarch in 1410–1416

Byzantine astronomer

Byzantine astronomer and mathematician

14th-century Byzantine monk and imposter

Greek missionary and saint

Byzantine theologian (c.1330–c.1369)

Byzantine monk and erudite

Byzantine general and governor

Byzantine monk