Athanasius I

Athanasius I (born 1230, Adrianople—died Oct. 28, 1310, Constantinople) was a Byzantine monk and patriarch of Constantinople, who directed the opposition to the reunion of Greek and Latin churches decreed by the Second Council of Lyon in 1274. His efforts in reforming the Greek Orthodox Church encountered opposition from clergy and hierarchy. A monk who emigrated to a monastery in the hallowed region of Mt. Athos, Greece, Athanasius journeyed to the Holy Land and lived...