Church History by Eusebius Pamphilius
Chapter XIV.--The Bishops that flourished at that Time.
At that time Xystus was still presiding over the church of Rome, and Demetrianus, successor of Fabius, over the church of Antioch, and Firmilianus over that of Cæsarea in Cappadocia; and besides these, Gregory and his brother Athenodorus, friends of Origen, were presiding over the churches in Pontus; and Theoctistus of Cæsarea in Palestine having died, Domnus received the episcopate there. He held it but a short time, and Theotecnus, our contemporary, succeeded him. He also was a member of Origen's school. But in Jerusalem, after the death of Mazabanes, Hymenæus, who has been celebrated among us for a great many years, succeeded to his seat.