"The Chahars (Khalkha Mongolian: Цахар, Tsahar; simplified Chinese: 察哈尔部; traditional Chinese: 察哈爾部) are a subgroup of Mongols that speak Chakhar Mongolian and predominantly live in southeastern Inner Mongolia, China.
The Chahars were originally one of estates of Kublai Khan located around Jingzhao (now Xi'an). They moved from Shaanxi to southeastern region controlled by the Northern Yuan dynasty based in the Mongolia Plateau in the 15th century. The Chahar became a tumen of six tumen Mongols under Dayan Khan and were led by his successors, thus becoming personal appanage of the Northern Yuan monarchs." - (en.wikipedia.org 11.08.2021)
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