Son of Artabanus [5] II. After Artabanus had already lost his son Arsaces [3] in an attempt to instate a branch of his family in Armenia, he despatched O. with the same objective around AD 36. With the support of Rome, the Iberian Mithridates [20] and his Caucasian auxiliary units defeated O. in battle. O. was wounded and probably died soon afterwards (Tac. Ann. 6,33-35; cf. Jos. Ant. Iud. 18,2,4). PIR2 O 152.
