St. Gregory (329-389) was also from Cappadocia. A friend of St. Basil, he too followed the monastic way of life for some years. In 381 he became Archbishop of Constantinople. It was during this period the Arian heresy was at it height. He was called "The Theologian" because of his great learning and talent for oratory.
Source: Daily Roman Missal, Edited by Rev. James Socías, Midwest Theological Forum, Chicago, Illinois ©2003 Courtesy of Women for Faith & Family