3. JuliusPolyaenus, the author of four epigrams in the Greek Anthology (9.1, 7, 8, 9, Tauchnitz), in one of which he is called Polyaenus of Sardis, and in the other three Julius Polyaenus. He must be the same as Polyaenus of Sardis, the sophist, spoken of by Suidas, who says (s. v. Πολύαινος), that he lived in the time of the first Caesar, Caius, that is, in the time of Julius Caesar, and wrote Λόγοι δικανικοὶ καὶ δικῶν ἤτοι συνηγοριῶν ὑποτυπώσεις, and Θριάμβου Παρθικοῦ βιβλία γ́. The latter work probably referred to the victories over the Parthians gained by Ventidius.
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890