The emperor Justinian calls him suum, though he died before the end of the second century. His Institutes are quoted by Servius, Boethius, Priscian, etc.; and the Epitome by Arrian is still extant. (See the Prolegomena and notes to the edition of Schulting, in the Jurisprudentia Ante-Justinianea, Lugd. Bat. 1717. Heineccius, Hist. J R No. 313. Ludewig, in Vit. Just. p. 199.)