The mausoleum of Antiochus I (69–34 B.C.), who
reigned over Commagene, a kingdom founded north of Syria and the
Euphrates after the breakup of Alexander's empire, is one of the most
ambitious constructions of the Hellenistic period. The syncretism of its
pantheon, and the lineage of its kings, which can be traced back
through two sets of legends, Greek and Persian, is evidence of the dual
origin of this kingdom's culture.