Арташес I
Currently, Tigranes I is assumed to be the successor and brother of Artavasdes I (who died without an heir) and the son of Artaxias I. Manandian, citing Strabo, mentions that Tigranes I put a strong resistance against the Parthians and successfully defended Armenia. Armenian historian Movses Khorenatsi in his work mentions a "Tiran", "son of Artaxias and brother of Artavasdes", who has been identified as Tigranes I. According to Khorenatsi, after the death of Artaxias I and against his wishes, the priests of the Vahuni family moved the gold-plated copper statue of Heracles from Armavir to their own temple-complex in Ashtishat. Once Tigranes I assumed the throne, he stripped Vahunis of priesthood and converted Ashtishat into a royal domain.