Pope Heraclas of Alexandria served as the thirteenth Pope of Alexandria (head of the church that became the Coptic Orthodox Church and the Greek Church of Alexandria) between 232 and 248. He followed Origen as head of the Catechetical School of Alexandria. He has been attributed as the first Bishop of Alexandria to carry the appellation of "Pope". The first known record of this designation being assigned to him is in a letter written by Pope Dionysius to Philemon: