[2280151.ged] Ruled c. 190 - 175 BC, Arsacid King of Parthia 1 Note: Precise information is not available concerning the reign of Priapatius (c. 191-176 BC), who succeeded Artabanus and whose name appears in documents found in excavations at Nisa. Under his son Phraates I (c. 176-171 BC), the young Parthian kingdom seems to have recuperated sufficiently to have taken up once again its expansionist activities.