From 87 to 85, Tigran's Army victoriously entered Armenian Mesopotamia [Northern Mesopotamia], the province of Korduk', Migdonia and Adiabenē, which were previously under the control of the Parthians. Th e kingdoms of Osroyenē and Atrpatakan [Atropatene] also pledged their loyalty and support to Tigran the Great. In 85, the Parthians officially recognized him as the supreme ruler of the East. Tigran took the haled title of King of Kings, from the Parthian monarch, and honorably held it to the end of his life.