a Greek SCULPTOR, and an eminent writer upon his art, was one of the artists who represented the battles of Attails and Eumenes against the Gauls. (Plin. Nat. 34.19.24.) He lived, therefore, about 239 B. C., when Attalus I., king of Pergamus, conquered the Gauls. A little further on, Pliny (§ 26) says, "Antigonus et perixyomenon, tyrannicidasque supra dictos," where one of the best MSS. has "Antignotus et luctatores, perixyomenon," &c.
[P.S]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