As the Armenians lost faith in their ruling monarch, they sent messengers to Augustus requesting him to remove Artaxias II from his throne and to install Tigranes III as his successor. Augustus agreed to the request from the Armenians. Augustus sent his step-son Tiberius, with Tigranes III with a large army to depose Artaxias II. Before Tiberius and Tigranes III arrived in Armenia, a cabal within the palace was successful in murdering Artaxias II. The Romans installed Tigranes III as the new King of Armenia unopposed.