Proper noun
English Wikipedia has an article on:NazianzusWikipedia
Nazianzus
(historical) A small town in the ancient region of Cappadocia.
Arriving at Nazianzus, Gregory found the local Christian community split by theological differences and his father accused of heresy by local monks. Source: Internet
Following the deaths of his mother and father in 374, Gregory continued to administer the Diocese of Nazianzus but refused to be named bishop. Source: Internet
Priesthood In 361 Gregory returned to Nazianzus and was ordained a presbyter by his father, who wanted him to assist with caring for local Christians. Source: Internet
Gregory of Nazianzus wrote: "The Holy Ghost is truly Spirit, coming forth ( προϊέναι main) from the Father indeed, but not after the manner of the Son, for it is not by Generation but by Procession ( ἐκπορεύεσθαι main)". Source: Internet
See how the 1992 edition of the Catechism of the Catholic Church cites a variety of Gregory's orations Paul Tillich credits Gregory of Nazianzus for having "created the definitive formulae for the doctrine of the trinity". Source: Internet
Similar ideas were to be introduced into Early Christian thought by, for example, Gregory of Nazianzus who summed it up saying "Therefore Unity, having from all eternity arrived by motion at duality, came to rest in trinity ". Source: Internet