Gregory of Nazianzus St. Gregory the Theologian, Archbishop of Constantinople Γρηγόριος ὁ Θεολόγος · Gregorius Nazianzenus Dates 329–390 (approx.) SeeConstantinople Epithetthe Theologian VenerationSaint Works (2) Select Orations of Saint Gregory Nazianzen (NPNF II) Select Letters of Saint Gregory Nazianzen (NPNF II)