Saint Gregory of Nazianzus was a fourth century Church Father, whose defense of the doctrine of the Trinity (God as Father, Son, and Holy Spirit) made him one o

Saint Gregory the Great was Pope from 590 to 604, launching the famous Gregorian Mission, the first recorded large-scale mission from Rome, to convert the pagan

Saint Basil the Great was a fourth century Byzantine bishop of Caesarea and an influential theologian that supported the Nicene Creed and opposed the heresies o

Saint Athanasius was a fourth century theologian and ecclesiastical statesman, who was the chief defender of Christian orthodoxy in the battle against Arianism

The most learned of the Latin Fathers, Saint Jerome had an eventful life, spending time as a hermit, becoming a priest, serving as secretary to Pope Damasus I a