The new emperor began his reign by launching expeditions against regions which had begun to break away during the war of succession. Fars, which was held by Shah Rukh's nephew Bayqara, was taken in 1414. Two years later Kirman, which had been ruled as an independent kingdom by Sultan Uwais Barlas since 1408, was also subdued. The area under Shah Rukh's rule continued to be extended and consolidated over the following years, either through voluntary subjugation by minor rulers or through alliances. By 1420, the eastern portion of Timur's empire, as well as central and southern Persia, had been brought under Shah Rukh's rule.