Less than a year later, Julius Caesar was murdered on the ides of March (March 15, 44 B.C.) by a group of his enemies (led by the republican nobles Marcus Junius Brutus and Gaius Cassius). Consul Mark Antony and Caesar’s great-nephew and adopted heir, Octavian, joined forces to crush Brutus and Cassius and divided power in Rome with ex-consul Lepidus in what was known as the Second Triumvirate. With Octavian leading the western provinces, Antony the east, and Lepidus Africa, tensions developed by 36 B.C. and the triumvirate soon dissolved. In 31 B.C., Octavian triumped over the forces of Antony and Queen Cleopatra of Egypt (also rumored to be the onetime lover of Julius Caesar) in the Battle of Actium. In the wake of this devastating defeat, Antony and Cleopatra committed suicide.