In 63 BC, following his victory in the Third Mithridatic War, Pompey the Great intervened in a civil war in the Hasmonean Kingdom between Hyrcanus II and Aristobulus II, conquered Judea and appointed Hyrcanus High Priest. Under Hyrcanus, real power rested with his chief minister, Antipater the Idumaean. In 49 BC Antipater prompted Hyrcanus to side with Julius Caesar during Caesar's Civil War. Following his victory, Caesar bestowed the title of ethnarch on Hyrcanus and epitropos (or Procurator) on Antipater. A few years later, Antipater appointed his sons Phasael and Herod military governors of Jerusalem and the Galilee respectively. After the Roman civil war following the murder of Julius Caesar, Hyrcanus and Antipater became clients of Mark Antony, who now ruled the Roman east.