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Jagatai(jăgətī`), d. 1242, Mongol conqueror; son of Jenghiz Khan. He led large armies on his father's campaigns of conquest. When the empire was divided in 1227 among Jenghiz Khan's three living sons and a grandson, Jagatai was rewarded with vast territories that correspond to present-day Turkistan and Afghanistan. He held this domain, a key area in the Mongol empire, as a satrapy under the rule of his brother Ogadai, who, although younger than Jagatai, had become grand khan. After Ogadai's death in 1241, dissension erupted between the Ogadai and Jagatai lines, and a third branch, which had descended from Jenghiz Khan's youngest son, Tule, dominated the Mongol empire. In the early 14th cent. Jagatai's descendants, the Jagataids, divided his khanate into two sections, the western region with its capital at Samarkand, and the eastern region, centering around Kashi (Kashgar). Often at war with one another, the two domains were reunited by TimurTimur
, c.1336–1405, Mongol conqueror, b. Kesh, near Samarkand. He is also called Timur Leng [Timur the lame]. He was the son of a tribal leader, and he claimed (apparently for the first time in 1370) to be a descendant of Jenghiz Khan.
..... Click the link for more information. (Tamerlane), who may have been related to the family ruling the western region. The name Jagatai is sometimes spelled Chagatai or Djagatai.
Died 1242. Mongol khan, second son of Genghis Khan.
Jagatai participated in most of his father’s campaigns, including the conquest of China and Khwarizm (Khorezm). In 1224, Genghis Khan divided up conquered lands among his sons, and Jagatai received as his appanage the Middle Asian regions from Almalyk (northwest of present-day Yining) to Amu-Darya and Syr-Darya. His headquarters were located in the Hi River valley. Considered to be the leading authority on Genghis Khan’s Great Book ofYasas and the customary law in the Mongol state, Jagatai demanded strict observance of Mongol laws in regions under his jurisdiction.