Acacius
3. The One-eyed (ὁ Μονόφθαλμος), the pupil and successor in the See of Caesarea of Eusebius A. D. 340, whose life he wrote. (Socrates, Hist. Eccl. 2.4.) He was able, learned, and unscrupulous. At first a Semi-Arian like his master, he founded afterwards the Homoean party and was condemned by the Semi-Arians at Seleucia, A. D. 359. (Socrates, Hist. Eccl. 2.39. 40; Sozomen, Hist. Eccl. 4.22. 23.) He subsequently became the associate of Aetius [AETIUS], the author of the Anomoeon, then deserted him at the command of Constantius, and, under the Catholic Jovian, subscribed the Homoousion or Creed of Nicaea. He died A. D. 366.
Works
He wrote seventeen Books on Ecclesiastes and six of Miscellanies. (St. Jerome, Vir. Ill. 98.) St. Epiphanius has preserved a fragment of his work against Marcellus (c. Haer. 72), and nothing else of his is extant, though Sozomen speaks of many valuable works written by him. (Hist. Eccl. 3.2.)
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.