Lü Bu (died February 199), courtesy name Fengxian, was a military general and warlord who lived in the late Eastern Han dynasty. Originally a subordinate of a minor warlord Ding Yuan, he betrayed and murdered Ding and defected to Dong Zhuo, the warlord who controlled the Han central government in the early 190s. In 192, he turned against Dong Zhuo and killed him after being instigated by Wang Yun and Shisun Rui, but was later defeated and driven away by Dong Zhuo's followers. From 192 to mid 195, Lü Bu wandered around central and northern China, consecutively seeking shelter under warlords such as Yuan Shu, Yuan Shao and Zhang Yang. In 194, he managed to take control of Yan Province from the warlord Cao Cao with help from defectors from Cao's side, but Cao took back his territories within two years. In 196, Lü Bu turned against Liu Bei, who had offered him refuge in Xu Province, and seized control of the province from his host. Although he had agreed to an alliance with Yuan Shu earlier, he severed ties with him after Yuan declared himself emperor – an act deemed treasonous against the Han emperor – and joined Cao Cao and others in attacking the pretender. However, in 198, he sided with Yuan Shu again and came under attack by the combined forces of Cao Cao and Liu Bei, resulting in his defeat at the Battle of Xiapi in 199. He was captured and executed on Cao Cao's order.