Chagatai Khan
In 1388, the Northern Yuan throne was taken over by Jorightu Khan Yesüder, a descendant of Arik Böke (Tolui's son), with the support of the Oirats. In the following year, one of Uskhal Khan's subjects, Gunashiri, a descendant of Chagatai Khan, founded his own small state called Kara Del in Hami.