Photinus of Sirmium

Photinus was a Christian bishop of Sirmium in Pannonia Secunda, best known for denying the incarnation of Christ, thus being considered a heresiarch by Catholic, Orthodox, and many Protestant Churches. His name became synonymous in later literature for someone asserting that Christ was not God. His teachings are mentioned by various ancient authors, like Ambrosiaster (Pseudo-Ambrose), Hilary of Poitiers, Socrates Scholasticus, Sozomen, Ambrose of Milan, Augustine of Hippo, John Cassian, Sulpicius Severus, Jerome, Vigilius of Thapsus and many others.