By the 5th century BC, the Kings of Persia were either ruling over or had subordinated territories encompassing not just all of the Persian Plateau and all of the territories formerly held by the Assyrian Empire including Armenia. The Satrapy of Armenia, a region controlled by the Orontid dynasty (570–201 BC), was one of the satrapies of the Achaemenid Empire in the 6th century BC that later became an independent kingdom. Its capitals were Tushpa and later Erebuni.