Fuyu
Fuyu was a polity of Mongol and Tungusic groups on the northern Songnen plain, named after the old kingdom of Fuyu. Its chiefs claimed descent from Temuge, brother of Chinggis Khan.
In 1389 the Ming organized the Fuyu Guard as one of the Three Uriankhai Guards. After the Oirat leader Toghon defeated the Khorchin in 1424, they took refuge with Fuyu and leadership passed to the Khasar line. Pressed by Mongols and Oirats, Fuyu moved south after 1449 and was absorbed by the Khorchin in the mid-sixteenth century.