St. Gregory of Nyssa (335-394), a former bishop of the city of Nissa, made a significant contribution to the development of Christian philosophy. Saint Gregory of Nyssa was an ardent defender of the Orthodox dogmas and a zealous teacher of his flock| distinguished by generosity, patience and peacefulness. Having lived to a ripe old age, Saint Gregory of Nyssa died peacefully, shortly after the Council of Constantinople (after 394). Together with his great contemporaries, Saints Basil the Great and Gregory the Theologian, Saint Gregory of Nyssa had an extremely significant influence on the development of church life.