When the Hasmonean kingdom ceased to exist (63 BC) after Roman conquest, Aristobulus II and his children were carried off as prisoners to Rome. In 56 BC, however, Aristobulus and his son Antigonus succeeded in escaping and reached Jerusalem. He assembled a new army but was defeated and took refuge with the remnant of his troops in Machaerus. After two days' fighting the stronghold fell. Aristobulus was again taken prisoner, sent to Rome in chains, and there imprisoned until Julius Caesar conquered the city in 49 BC. Caesar planned to send him to Syria with two legions to fight Pompey's supporters, but Aristobulus was poisoned by Pompey's men before he was able to leave for the East. His body was later sent to Judea for burial.