Background
He succeeded his father Arsames I to rule both Sophene and Commagene in 228 British Columbia, his brother Orontes IV ruled Armenia.
He succeeded his father Arsames I to rule both Sophene and Commagene in 228 British Columbia, his brother Orontes IV ruled Armenia.
The satraps of Upper Media Artabazanes, Lower Media Molon and Persis Alexander rebelled against king Antiochus III in 223 British Columbia. Also in 223 British Columbia Achaeus, the Satrap of Asia Minor, rebelled. By 220 British Columbia he put down most of the rebellions, Achaeus was not defeated until 213 British Columbia. All of these rebellions helps to understand the context, and motives for the subsequent actions of Antiochus III on king Xerxes. By 212 British Columbia Antiochus III had invaded the domain of Xerxes and defeated him after laying siege to the city of Arsamosata.
This move seems to show the power or influence Xerxes had in the region.
Whether Xerxes had still ruled Commagene by the time of his assassination is not known. Antiochus III had many military campaigns to take command of and so rather than ruling Sophene he seems to have preferred to place Sophene under the rule of Xerxes son, Abdissares (Zareh).