Li Jue , courtesy name Zhiran , was a descendant of Li Guang, and a military general serving under the autocratic warlord, Dong Zhuo, during the late Han Dynasty era of Chinese history. He later succeeded the Liang Province faction from Dong Zhuo, who was murdered in a coup dtat, and was able to overtake the capital of Changan, keeping the emperor under collar. Despite being adept in military, he was inept at politics, quarreling with his fellow generals and made the wrong decision to let Emperor Xian escape, greatly abating his power and precipitating his downfall.
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Source: Wikipedia