Gennadius Scholarius Cleric
Gennadius II (in Greek Γεννάδιος Β') (lay name Georgios Kourtesios Scholarios, in Greek Γεώργιος Κουρτέσιος Σχολάριος) (c. 1400 – c. 1473), Ecumenical Patriarch of Constantinople from 1454 to 1464, philosopher and theologian, was one of the last representatives of Byzantine learning, and a strong advocate of Aristotelian philosophy in the Eastern Church.