The Roman Republic (Latin: RES-PVBLICA ROMANORVM) was the period of the ancient Roman civilization where the government operated as a republic. It began with the overthrow of the Roman monarchy, traditionally dated around 509 BC, and its replacement by a government headed by two consuls, elected annually by the citizens and advised by a senate. A complex constitution gradually developed, centered on the principles of a separation of powers and checks and balances. Except in times of dire national emergency, public offices were limited to one year, so in theory at least, no single individual could dominate his fellow citizens.
Mark Antony (Latin: M·ANTONIVS·M·F·M·N) (January 14, 83 BC – August 1, 30 BC) was a Roman politician and general. As a military commander and administrator, he was an important supporter and loyal friend of his mother's cousin Julius Caesar. After Caesar's assassination, Antony formed an official political alliance with Octavian (the future Augustus) and Lepidus, known to historians today as the Second Triumvirate.
The triumvirate broke up in 33 BC. Disagreement between Octavian and Antony erupted into civil war, the final war of the Roman Republic, in 31 BC. Antony was defeated by Octavian at the naval Battle of Actium, and in a brief land battle at Alexandria. He and his lover Cleopatra committed suicide shortly thereafter. His career and defeat are significant in Rome's transformation from Republic to Empire.
A member of the Antonia clan (gens), Antony was born on January 14, 83 BC. He was the homonymous and thus presumably the eldest son of Marcus Antonius Creticus (praetor 74 BC, proconsul 73–71 BC) and grandson of the noted orator Marcus Antonius (consul 99 BC, censor 97–6 BC) who had been murdered during the Marian Terror of the winter of 87–6 BC.