Ligdan Khan
Oppressed by Altan Khan, the Chahars, led by Daraisung Guden Khan, moved eastward onto the Liao River in the middle of the 16th century. In the early 17th century Ligdan Khan made an expedition to the west because of pressure from the Manchu people. When he died in Gansu on his way to Tibet, his son, Ejei, surrendered to the Manchus in 1635 and was given the title of Prince () and Inner Mongolian nobility became closely tied to the Qing royal family and intermarried with them extensively. Ejei Khan died in 1641 and was succeeded by his brother Abunai.