Seleucus VI Epiphanes was the oldest son of Antiochus VIII Grypus and defeated his half-uncle Antiochus IX Cyzicenus in 96 BC as revenge for his father's death, but the score was evened only the next year (95 BC)by Antiochus' son Antiochus X Eusebes, and Seleucus had to flee from Syria to Mopsuestia in Cilicia, where he set up a court but was soon killed by the inhabitants, who could by no means afford his extravagant lifestyle. Four of his brothers, including Antiochus XI Ephiphanes Philadelphus, Philip I Philadelphus, and Demetrius III Euergetes, continued the devastating civil war against the other branch of the family and each other.