(c. 180), is mentioned by Eusebius of Caesarea as an orthodox author (Hist. eccl. IV 21) and especially as the author of an anti- Marcionite writing (IV 25). The context points to a date of c. 180. Jerome (Vir. ill. 32) confirms this statement: he has Modestus write during the reigns of Marcus Aurelius (161–180) and Commodus (180–192). According to Eusebius, Modestus, in his writing against Marcion, exposed the heretic's error “better than the others.” The work is lost, and it is not known where Modestus lived.
Bibliography
A. v. Harnack, Marcion, TU 45, 1921, 219…