The prototypic romantic femme fatal, Cleopatra VII Philopator was the lover of Julius Caesar, later wife of Mark Antony, and final ruler of the Ptolemaic Kingdom of Egypt. After the assassination of Caesar, Cleopatra allied herself with the Second Triumvirate, whose foremost members were Antony and Octavian. Cleopatra and Antony began their love affair while Antony remained married to Octavian's sister, Octavia, and Antony became heavily reliant on Cleopatra as a source of funding and military aid. Cleopatra and Antony married after he obtained a divorce with Octavia, an event which ignited the tensions between Antony and Octavian, resulting in civil war between the two triumvirs. After their forces were defeated by Octavian, Antony and Cleopatra committed suicide, leaving their children to the care of Octavia.