‘Cappadocian Father’. The son of the Bp. of Nazianzus in Cappadocia, he studied at Athens. He then adopted the monastic life. About 372 he was consecrated Bp. of Sasima, a village in Cappadocia, and assisted his father as suffragan. In 379 he was summoned to Constantinople, where his preaching helped to restore the Nicene faith. In 381 he was appointed Bp. of Constantinople, but he retired in the same year. His writings include his ‘Five Theological Orations’, which contain an elaborate treatment of the doctrine of the Holy Spirit; the Philocalia, which he compiled with St Basil; letters against Apollinarianism; and poems. Feast day, in the E., 25 Jan.; in the W., 2 Jan. (formerly 9 May, as in the American BCP, 1979).