Kalmyk Khanate
Tibetan Buddhism was the most important religion among the Mongols under Qing rule (1635–1912), as well as the state religion of the Kalmyk Khanate (1630–1771), the Dzungar Khanate (1634–1758) and the Khoshut Khanate (1642–1717). Tibetan Buddhism was also adored by the Manchu Qing court (1644–1912) since both Mongols and Tibetans believed in Tibetan Buddhism. Some historians may view the promotion of Tibetan Buddhism among the Mongols by the Chinese and Manchus as a deliberate plot to weaken the Mongol's military power, but others reject the theory.