Rhadamistus
the son of Pharasmanes, king of Iberia, was a highly fitted but ambitious youth, whom his old father tied to get rid of by exciting him to invade Armenia, for which purpose he gave him an army. (A. D. 52.) Rhadamistus, seconded by the perfidy of the Roman praefect in Armenia, Pollio, succeeded in seizing upon the person of his uncle, whom he put to death with his wife and his children. Rhadamistus then ascended the throne; but Vologeses I., the king of the Parthians, took advantage of the distracted state of the country to send his brother Tiridates into Armenia, and proclaim him king. Tiridates advanced upon Tigranocerta, took this city and Artaxata, and compelled Rhadamistus to fly. Rhadamistus was subsequently killed by his father Pharasmanes. (Tac. Ann. 12.44-51, 13.6, 37.) TIRIDATES I.
The brother of Vologeses I., king of the Parthians, was driven out of Armenia by Corbulo, who appointed in his place Tigranes IV., the grandson of king Archelaus, A. D. 60. [TIGRANES IV.] Tiridates subsequently received the crown as a gift from Nero, A. D. 63. [ARSACES XXIII., TIRIDATES I.]