Dionysius of Alexandria

Our father among the saints Dionysius of Alexandria was the Bishop of Alexandria during the middle of the third century. A convert to Christianity at a mature age, he led the Alexandrian Catechetical School before becoming the bishop of Alexandria. He was called Dionysius the Great by Eusebius of Caesarea , St. Basil the Great , and others. His feast day is October 5 .

Source: OrthodoxWiki