c.90 BC Conjectural date of the birth of Marcus Aemilius Lepidus, son of Marcus Aemilius Lepidus, consul 78.
c.55 Conjectural date of his marriage to Junia, half-sister of Brutus the conspirator.
53 Appointed interrex in the absence of elected consuls. His house is vandalized following the death of Clodius.
49 As praetor, is put in charge of affairs in Rome by Caesar, in which capacity he carries a law appointing Caesar dictator.
48-47 Governor of Nearer Spain. Celebrates a triumph in Rome.
46 Consul, with Caesar, who appoints him his magister equitum.
45 Caesar nominates his great-nephew, Gaius Octavius, to replace Lepidus as magister equitum from the time his expedition leaves for Parthia in 44 until the end of that year. Lepidus is to govern Transalpine Gaul and Nearer Spain.
44 (14 March) Caesar dines at the house of Lepidus.(15 March) Caesar assassinated. Lepidus secures the city with the troops at his disposal. Before he leaves for his provinces, he is nominated, at the instigation of Antony, to succeed Caesar as pontifex maximus, an office he holds for the rest of his life. Lepidus’s son betrothed to Antonia, Antony’s daughter with his cousin Antonia (the marriage never took place).
43 Antony is driven into Transalpine Gaul, where Lepidus, unable to continue to adopt a neutral stance, joins his cause (May). Lepidus is declared an enemy of the state (June). Gaius Octavius (Octavian) elected consul (August). Establishment of the triumvirate (October). Among those who die in the proscriptions is Lepidus’s brother, L. Aemilius Paullus. Lepidus celebrates a second triumph.
42 Lepidus is consul, with L. Munatius Plancus,. and in charge of Rome and the rest of Italy during the Philippi campaign. He is deprived of his provinces on suspicion of helping Sextus Pompeius, but given a promise of Africa should he be proved innocent.
40 Lepidus allowed to take up his post as governor of Africa.
37 Renewal of triumvirate, ignoring Lepidus.
36 Octavian summons Lepidus to Sicily to participate in the war against Pompeius. Lepidus, on his own initiative, takes Lilybaeum and Messana, where Pompeius’s troops desert to him. On Octavian’s arrival, he claims Sicily for himself and demands his rightful powers as triumvir. Octavian wins over Lepidus’s troops, expels him from the triumvirate, and banishes him to Circeii, on the Tyrrhenian coast south of Rome, under strict supervision.
12 Death of Lepidus. Augustus assumes title of pontifex maximus.