In 67 BCE a quarrel broke out between Aristobulus II and Hyrcanus II, sons and successors of Alexander Jannæus. Both parties appealed to Roman general Gnaeus Pompeius Magnus (Pompey the Great), who was campaigning in the region at the time, for his assistance. Pompey decided to side with Hyrcanus (and his adviser Antipater), and Aristobulus and his followers barricaded themselves in the Temple Mount. In 63 BCE Pompey and the Roman army arrived in Jerusalem, besieged the Temple and then took it by storm, bringing an end to Jewish sovereignty. In 40 BCE, the Roman Senate granted Herod, Antipater's son, the title of King of Judea. Aided by Roman troops, Herod took Jerusalem from Antigonus II Mattathias, ending Hasmoean rule.