Alexandra, who favored her elder son Hyrcanus, ordered the jailing of Aristobulus' wife and sons in the Antonia Keep in Jerusalem, to the north of the Temple Mount. She died shortly after, following which Hyrcanus was crowned King of Judea. The two brothers' forces engaged nearby Jericho, in which many of Hyrcanus' men joined Aristobulus, after that Hyrcanus quickly escaped to the Antonia Keep where his brother's family lies, however eventually after negotiations the brother made peace and Hyrcanus abdicated the throne to Aristobulus who ensured Hyrcanus' safety.