Marcus Antonius (c. 83 - 30 B.C.), known in English as Mark Antony, was a Roman politician and general. He was an important supporter of Julius Caesar as a military commander and adminstrator. He served as Caesar's colleague as consul in 44.
Along with Lepidus and Octavian (later Augustus), he formed the Second Triumvirate. To seal the alliance Antony married Octavian's sister, Octavia (see Julio-Claudian Family Tree). After the triumvirate came to an end, he was decisively defeated by Octavian in the naval battle of Actium.
He committed suicide prior to Octavian's entry into Alexandria in 30 BC.