Based on Josephus' record, Antiochus Eupator began his reign after his father's death (Antiochus Epiphanes) in anno 149 of the Seleucid Era (= 162 BCE).
Menurut catatan Yosefus, Antiochus Eupator memulai pemerintahannya setelah kematian ayahnya (Antiochus Epiphanes) pada anno (=tahun) 149 Era Seleucid (= 162 SM).