In 67 BCE, Hyrcanus II ascended to the throne of Judea. Scarcely three months later, his younger brother Aristobulus II incited a rebellion, successfully leading the uprising to overthrow Hyrcanus and take the offices of both King and High Priest. Hyrcanus was confined to Jerusalem, where he would continue to receive revenues of the latter office. However, fearing for his life, he fled to Petra and allied himself with Aretas, who agreed to support Hyrcanus after receiving the promise of having the Arabian towns taken by the Hasmoneans returned to Nabataea by Hyrcanus' chief advisor, Antipater the Idumaean.