St. Hilary of Poitiers (300–368 A.D.) was born in France to noble pagan parents. He was well instructed in philosophy and converted to Christianity after studying the Old and New Testaments. He was baptized into the Church along with his wife and daughter. He was widely respected by the people of Poitiers, so much so that they elected him their bishop. Hilary worked hard to defend the Catholic Church against the entrenched heresy of Arianism which resulted in his four-year exile to Phrygia, and his popular title, "Hammer of the Arians." Although he was a gentle and courteous man, he was labeled a 'disturber of the peace' for defending Jesus' sacred humanity and divinity against the Arian heretics, the only orthodox bishop in his region doing so. He was renowned for his great learning and sanctity, and for defending the Church valiantly in word and by pen. While in exile he wrote numerous and important theological works resulting in his title as a Doctor of the Church. St. Hilary's feast day is January 13.