Nicene and Post-Nicene Fathers: Series II/Volume II/Socrates/Book IV/Chapter 14
Chapter XIV.—The Arians ordain Demophilus after the Death of Eudoxius at Constantinople; but the Orthodox Party constitute Evagrius his Successor.
The Emperor Valens leaving Constantinople again set out towards Antioch; but on his arrival at Nicomedia, a city of Bithynia, his progress was arrested by the following circumstances. Eudoxius the bishop of the Arian church who has been in possession of the seat of the Constantinopolitan church for nineteen[1]
years, died soon after the emperor’s departure from that city, in the third consulate[2]
of Valentinian and Valens. The Arians therefore appointed Demophilus to
succeed him; but the Homoousians considering that an opportunity was
afforded them, elected a certain Evagrius, a person who maintained
their own principles; and Eustathius, who had been bishop of Antioch,
formally ordained him. He had been recalled from exile by Jovian, and
had at this time privately come to Constantinople, for the purpose of
confirming the adherents to the doctrine of the homoousion.