Marcus Aemilius Lepidus[lower-alpha 1] (/ˈlɛpɪdəs/; c. 89 or 88 BC – late 13 or early 12 BC)[2] was a Roman patrician who was a part of the Second Triumvirate alongside Gaius Julius Caesar Octavianus (the future Augustus) and Marcus Antonius, and the last Pontifex Maximus of the Roman Republic. Lepidus had previously been a close ally of Julius Caesar.