St. Athanasius was born in 297 AD in Alexandria and died in 373 AD He was the bishop of Alexandria for 45 years. St. Athanasius was considered the champion of the Council of Nicea in 325 AD He was a prolific polemicist against the Arians who exiled him five times. St. Athanasius is one of the four great doctors of the Eastern Church. He wrote the "On the Incarnation", the "Discourses Against the Arians", and the "Life of Anthony" . St. Athanasius is known as the Doctor of Incarnation and his theology of the Trinity was the inspiration for Hilary, bishop Arles to write the Athanasian Creed.