Soon after, other cities of Yarkand state – Yarkand, Khotan, Aksu, and Uch Turpan – joined him, and recognized Sultan Said Khan as a ruler, creating a union of six cities, called Altishahr. Sultan Said Khan's sudden success is considered to be contributed to by the dissatisfaction of the population with the tyrannical rule of Mirza Abu-Bakr and the unwillingness of the dughlat amirs to fight against a descendant of Chagatai Khan, and who decided, on the contrary, to bring the head of the slain ruler to Sultan Said Khan. This move put an end to almost 300 years of rule (nominal and actual) by the Dughlat emirs in the cities of West Kashgaria (1219–1514).
Soon after, other cities of Yarkand state – Yarkand, Khotan, Aksu, and Uch Turpan – joined him, and recognized Sultan Said Khan as a leader, forming a union of six cities, called Altishahr. Sultan Said Khan's unexpected success is attributed to the population's discontent with the oppressive rule of Mirza Abu-Bakr and the dughlat amirs' reluctance to oppose a descendant of Chagatai Khan, who instead brought the head of the slain ruler to Sultan Said Khan. This action ended nearly 300 years of Dughlat emir rule in West Kashgaria (1219–1514).