V. I
was the eldest of four Parthian princes who in 10 BC were placed in the custody of the Romans by their father Phraates  IV. He was able to succeed Orodes  III c. 8 AD, but did not manage to gain the respect of the Iranian nationalist nobility that Artabanus  II arrayed against him. V. was able to force his competitor to temporarily retreat into the Medean mountains, but ultimately had to flee from him to Armenia. He tried to win the throne there, which was vacant after the final retreat of Erato , but here too he was unable to establish himself in the face of Artabanus' threatening behaviour. His royal exile in Antioch  in Syria did not last long either, since Artabanus prevailed on him to leave the border region. V. was relocated to Pompeiopolis in Cilicia. From there he tried to escape in AD 19, but was retrieved and killed by Remmius .