Galdan Boshugtu Khan
In the middle of the Ming dynasty (1368-1644), the Black Mountain Khoja received approval from the ruling Yarkand Khanate for the Altishahr or Tarim Basin area south of the Tian Shan range in the Western Regions to convert to Islam. In the mid-17th century, the White Mountain Khoja leader Muhammed Yusef Khoja (d. 1653) came from Central Asia to Kashgar to prosleytze only to be driven out by the Yarkand Khanate and the Black Mountain Khojas. Yusef Khoja's son Afaq Khoja escaped to Hezhou (; modern day Linxia City) in China's Gansu Province. From there, he went to Tibet to obtain the support of the 5th Dalai Lama and the Dzunghar Mongols under Galdan Boshugtu Khan.