 Their title was abolished, all Chahar Mongol royal males were executed even if they were born to Manchu Qing princesses, and all Chahar Mongol royal females were sold into slavery except the Manchu Qing princesses.The Chahar Mongols were then put under the direct control of the Qing Emperor unlike the other Inner Mongol leagues which maintained their autonomy.The Khalkha Mongols were more reluctant to come under Qing rule, only submitting to the Kangxi Emperor after they came under an invasion from the Oirat Mongol Dzungar Khanate under its leader Galdan.