ANTO`NIUS, MARCUS

   1) a famous Roman orator and consul, slain in the civil war between Marius and Sulla, having sided with the latter (143-87 B.C.).

   2) (Mark Antony), grandson of the preceding and warm partisan of Cæsar; after the murder of the latter defeated Brutus and Cassius at Philippi, formed a triumvirate with Octavius and Lepidus, fell in love with the famous Cleopatra, was defeated by Octavius in the naval battle of Actium, and afterwards killed himself (83-30 B.C.).