Anti'ochus V. or Anti'ochus Eupator
（*)Anti/oxos), king of SYRIA, surnamed EUPATOR (*Eu)pa/twr), was nine years old at his father's death, and reigned nominally for two years. (B. C. 164-162.) Lysias assumed the guardianship of the young king, though Antiochus IV. had appointed Philip to this office. Lysias, accompanied by the young king, continued the war against the Jews, and laid siege to Jerusalem; but hearing that Philip was marching against him from Persis, he concluded a peace with the Jews.
He then proceeded against Philip, whom he conquered and put to death. The Romans, availing themselves of the distracted state of Syria, sent an embassy to enforce the terms of the peace which had been concluded with Antiochus the Great; but an insurrection was excited in consequence of these commands, in which Octavius, the chief of the embassy, was slain. About the same time Demetrius Soter, the son of Seleucus Philopator, who had remained in Rome up to this time [see ANTIOCHUS IV.], appe