Parthamaspates was a Parthian prince who ruled as a Roman client king in Mesopotamia, and later of Osroene during the early second century AD.
[1] After spending much of his life in Roman exile, he accompanied the emperor Trajan on the latter's campaign to conquer Parthia.
[3] Following Roman withdrawal from the area, Osroes easily defeated Parthamaspates and reclaimed the Parthian throne.
[1] From his territory of Osroene, he is known to have traded with the Kushan Empire, goods being sent by sea and through the Indus River.
[1] Long after the failure of Parthamaspates, Rome still claimed to have control of Parthian land, as shown in a coin of Antoninus Pius (138–161 AD) with the image of a subdued "Parthia" offering the crown to him.