Rome had long cast a greedy eye over Egypt. It seized its chance when Queen Cleopatra became embroiled in a messy struggle for political mastery after the assassination of Julius Caesar. After fatefully throwing in her lot with Mark Antony at the battle of Actium in 30 BC, the Egyptian ruler was soon faced with a Roman army led by Octavius, a master of political cunning, bearing down on Alexandria. Following a series of defensive decisions that combined profound negligence with gross incompetence, Cleopatra committed suicide, either as the result of a poisonous snakebite or perhaps by a self-administered toxin. Egypt fell like a ripe fruit.57 Octavius had left Rome as a general; he returned as its supreme ruler, with a new title shortly to be bestowed by a grateful Senate: Augustus. Rome had become an empire.