In the narration of these campaigns there are considerable differences between the writers of 1 Maccabees and 2 Maccabees which scholars have not found easy to explain. Antiochus died at Babylon on his Persian expedition (164 BCE), and Lysias assumed the office of regent during the minority of his son, who was yet a child.[4] He collected another army at Antioch, and after the re-capture of Beth-zur was besieging Jerusalem when he learned of the approach of Philip to whom Antiochus, on his deathbed, had entrusted the guardianship of the prince.[5] He defeated Philip in 163 BCE and was supported at Rome, but in the following year he fell with his ward Antiochus into the hands of Demetrius I, who put both of them to death.[6]