BL3302323: Border and drawing of Junio Brutto. Either: Marcus Junius Brutus, often referred to as Brutus, a politician of the late Roman Republic. He is best known for taking a leading role in the assassination of Julius Caesar. Or, Lucius Junius Brutus, the founder of the Roman Republic and traditionally one of the first consuls in 509 BC. The ancestor of Marcus Junius Brutus, the most famous of Caesar's assassins. / Bridgeman Images