Liu Heita

Liu Heita (劉黑闥) (died 623) was an agrarian rebel leader during China's transition period from Sui Dynasty to Tang Dynasty, who initially successively served under Hao Xiaode (郝孝德), Li Mi, and Wang Shichong. He eventually followed Dou Jiande the Prince of Xia. After Dou was killed by Emperor Gaozu of Tang in 621 and his territory was taken by Tang, Liu rose to avenge Dou, and briefly recaptured Dou's territory, north of the Yellow River. He was then defeated, first by the Tang general Li Shimin (the eventual Emperor Taizong) and then Li Shimin's brother Li Jiancheng the Crown Prince, and in 623, he was captured by his one-time subordinate Zhuge Dewei (諸葛德威) and executed.

Read more about Liu Heita:  Service Under Hao Xiaode, Li Mi, Wang Shichong, and Dou Jiande, Uprising Against Tang, Defeat and Death