Gregory of Nazianzus

Gregory of Nazianzus (c. 329 – c. 390) was one of the Church Fathers and Doctors of the Church. Born in Cappadocia (modern-day Turkey), he was the son of Gregory the Elder, Bishop of Nazianzus, and Nonna. He studied in Caesarea of Cappadocia, Alexandria, and Athens, where he formed a deep friendship with Basil the Great and his brother Gregory of Nyssa, thus becoming part of the "Cappadocian Fathers". Ordained a priest against his will, he was later appointed Bishop of Sasima by Basil, and then coadjutor bishop of Nazianzus. In 379, he was called to Constantinople to restore Nicene orthodoxy after decades of Arianism. His sermons, particularly the "Five Theological Orations", earned him the nickname "the Theologian". He was elected Patriarch of Constantinople but resigned in 381 during the First Council of Constantinople, weary of ecclesiastical intrigues. He retired to Nazianzus, where he spent his final years writing poetry and letters. He is revered for his elegant rhetoric and his firm defense of the Trinity and the full divinity of the Holy Spirit.