
In the Liberators' civil war of 43–42 BC, Cleopatra sided with the Roman Second Triumvirate formed by Octavian, Mark Antony, and Marcus Aemilius Lepidus. After their meeting at Tarsos in 41 BC, Cleopatra had an affair with Antony that would eventually produce three children: Alexander Helios, Cleopatra Selene II, and Ptolemy Philadelphus