Gregory of Nazianzus

Saint Gregory of Nazianzus
Icon of St. Gregory the Theologian Fresco from Kariye Camii, Istanbul, Turkey
Theologian, Doctor of the Church, Great Hierarch, Cappadocian Father, Ecumenical Teacher
Born	AD 329 Arianzum, Cappadocia
Died	25 January 390 Arianzum, Cappadocia
Venerated in	Eastern Orthodox Church Oriental Orthodoxy Roman Catholic Church Anglican Communion Lutheranism
Canonized	pre-congregation
Major shrine	Patriarchal Cathedral of St. George in the Fanar
Feast	Eastern Orthodox Church: January 25 (primary feast day) January 30 (Three Great Hierarchs) Roman Catholic Church: January 2 (c. 1500–1969 May 9) Anglican Communion: January 2 Episcopal Church May 9 Lutheran Church: January 10 (LCMS); June 14 (ELCA)
Attributes	Vested as a bishop, wearing an omophorion; holding a Gospel Book or scroll. Iconographically, he is depicted as balding with a bushy white beard.

Gregory of Nazianzus (Greek: Γρηγόριος ὁ Ναζιανζηνός Grēgorios ho Nazianzēnos; c. 329 – 25 January 390), also known as Gregory the Theologian or Gregory Nazianzen, was a 4th-century Archbishop of Constantinople, and theologian. He is widely considered the most accomplished rhetorical stylist of the patristic age. As a classically trained orator and philosopher he infused Hellenism into the early church, establishing the paradigm of Byzantine theologians and church officials.

Gregory made a significant impact on the shape of Trinitarian theology among both Greek- and Latin-speaking theologians, and he is remembered as the "Trinitarian Theologian". Much of his theological work continues to influence modern theologians, especially in regard to the relationship among the three Persons of the Trinity. Along with the brothers Basil the Great and Gregory of Nyssa, he is known as one of the Cappadocian Fathers.

Gregory is a saint in both Eastern and Western Christianity. In the Roman Catholic Church he is numbered among the Doctors of the Church; in Eastern Orthodoxy and the Eastern Catholic Churches he is revered as one of the Three Holy Hierarchs, along with Basil the Great and John Chrysostom.