Tigranes III died before 8 BC. In 8 BC, the Armenians installed Tigranes IV as King as the successor to his father. for the Armenian throne, as their dual rule did not have Roman approval and they leaned towards
Parthia for support.
Rome and Parthia competed with one another for their protégés to have influence and govern Armenia. Roman historian of the 4th century
Sextus Rufus informs us that anti-Roman sentiment was building in Armenia during the reign of Tigranes IV and Erato. Rufus also emphasizes that the Kingdom of Armenia was very strong during this period. The dispossessed and the discontent of the ruling Artaxiad monarchs and their subjects towards ancient Rome had instigated war with the aid of King
Phraates V of Parthia. To avoid a full-scale war with
Rome, Phraates V soon ceased his support to the Armenian ruling monarchs. This lead Tigranes IV and Erato, acknowledging Roman suzerainty; Augustus receiving their submission to Rome and good wishes, allowed them to remain in power. perhaps ending an internal Armenian revolt of those who were infuriated by the royal couple becoming allies to Rome. The war and the chaos that occurred afterwards, Erato abdicated her throne and ended her rule over Armenia. From the situation surrounding Tigranes IV and Erato, the Armenians requested to Augustus, a new Armenian king. ==References==