5. M.AemiliusScaurus, the son of No. 3, and Mucia, the former wife of Pompey the triumvir, and consequently the half-brother of Sex. Pompey. He accompanied the latter into Asia, after the defeat of his fleet in Sicily, but betrayed him into the hands of the generals of M. Antonius, in B. C. 35. After the battle of Actium, he fell into the power of Octavian, and escaped death, to which he had been sentenced, only through the intercession of his mother, Mucia. (Appian, App. BC 5.142; D. C. 51.2, 56.38.)