 In 95 BC, Parthian Shah Mithridates II, installed Tigranes the Great as Parthian's client-king over Armenia.Tigranes would wage a series of three wars against Rome before being ultimately defeated by Pompey in 66 BC.Thereafter, with his son Artavasdes II in Rome as a hostage, Tigranes would rule Armenia as an ally of Rome until his death in 55 BC.