Demetrianus

(Δημητριανός), of Ravenna, the father of the celebrated rhetorician Aspasius, lived in the time of the emperor Alexander Severus, and was no less distinguished as a rhetorician than as a critical mathematician. (Philostr. Vit. Soph. 2.33.1; Suidas, s. v. Ἀδπάδιος.) [L.S]