 Although the emirate, representing the settled lands of Eastern Turkestan, was formally under the rule of the Moghul khans, the Dughlat amirs often tried to put an end to that dependence, and raised frequent rebellions, one of which resulted in the separation of Kashgar from Moghulistan for almost 15 years (1416–1435).Mirza Abu-Bakr ruled Yarkand for 48 years.In May, 1514, Sultan Said Khan, grandson of Yunus Khan (ruler of Moghulistan between 1462 and 1487) and third son of Ahmad Alaq, made an expedition against Kashgar from Andijan with only 5000 men, and having captured the Yangi Hissar citadel, that defended Kashgar from south road, took the city, dethroning Mirza Abu-Bakr.