Mongol Empire a son of a Mongol chieftain. As a young man he rose very rapidly by working with Toghrul Khan of the Kerait. The most powerful Mongol leader at the time was Kurtait; he was given the Chinese title "Wang", which means Prince. Temujin went to war with Wang Khan. After Temujin defeated Wang Khan he gave himself the name Genghis Khan. He then enlarged his Mongol state under himself and his kin. The term Mongol came to be used to refer to all Mongolic speaking tribes under the control of Genghis Khan. His most powerful allies were his father's friend,
Society of the Mongol Empire darughachi and judges in the appanages instead direct distribution without the permission of Great Khan thanks to genius Khitan minister Yelu Chucai. Kublai Khan continued Ögedei's regulations somehow, however, both Güyük and Möngke restricted the autonomy of the appanages before. Ghazan also prohibited any misfeasance of appanage holders in Ilkhanate and Yuan councillor Temuder restricted Mongol nobles' excessive rights on the appanages in China and Mongolia. Kublai's successor and Khagan Temür abolished imperial son-in-law Goryeo King Chungnyeol's 358 departments which caused financial pressures to the Korean people, whose country was under the control of the Mongols. The appanage system was