The
Second Triumvirate is the name historians have given to the official political alliance of
Gaius Octavius (Octavian, Caesar
Augustus),
Marcus Antonius (
Mark Antony), and
Marcus Aemilius Lepidus, formed on 26 November 43 BC with the enactment of the
Lex Titia, the adoption of which is viewed as marking the end of the
Roman Republic. The Triumvirate existed for two five-year terms, covering the period 43 BC to 33 BC. Unlike the earlier
First Triumvirate, the Second Triumvirate was an official, legally established institution, whose overwhelming power in the Roman state was given full legal sanction and whose
imperium maius outranked that of all other magistrates, including the
consuls.