The brother of Artabanus IV., the last Arsacid in Parthia, by whom he was made king of Armenia in the first year of the reign of Alexander Severus. (A. D. 222-223.) When his brother was killed by Artaxerxes (Ardashir), the first Sassanid on the Persian throne, he resisted the usurper, and united his warriors with those of Alexander Severus in the memorable war against Artaxerxes. [SASSANIDAE.] (Procop. de Aedificiis Justin.
3.1; D. C. 80.3
; Herodian, 6.2, &c.; Agathias, pp. 65, 134, ed. Paris.)