According to Tacitus (Annales xi. 8-10), Vardanes I was expelled temporarily from the throne by Gotarzes II, and fled to take refuge "in the plains of the Bactrians" (possibly the Yuezhi, who occupied Bactria at that time).
Parthia | Arsaces I of Parthia | Vologases III of Parthia | Vologases IV of Parthia | Mithridates I of Parthia | Tiridates I of Parthia | Pacorus II of Parthia | Vonones II of Parthia | Vologases V of Parthia | Vologases I of Parthia | Parthia (horse) | Orodes II of Parthia | Artabanus V of Parthia | Artabanus IV of Parthia |