Liu Dai[b] (died 192), courtesy nameGongshan, was a Chinese politician who lived during the late Eastern Han dynasty of China.
Liu Dai was from Mouping County (牟平縣), Donglai Commandery (東萊郡), which is in present-day Muping District, Yantai, Shandong. He served as Palace Attendant and the Inspector of Yan Province (兗州刺史) under the Han dynasty. Liu Dai's uncle, Liu Chong (劉寵),[c] served as the Grand Commandant (太尉) in the Han imperial court[4] in 169.[5]
In the spring of 190, Liu Dai joined the coalition of warlords led by Yuan Shao to oppose Dong Zhuo, a tyrannical warlord who controlled the central government and held Emperor Xian hostage. Later Liu Dai had disagreements with Qiao Mao, the Administrator of Dong Commandery, so he killed Qiao Mao and replaced him with Wang Gong (王肱).
Liu Dai then arranged for marriages between his family and the clans of Yuan Shao and Gongsun Zan. Yuan Shao allowed his family members to stay with Liu Dai, while Gongsun Zan sent his follower Fan Fang (范方) to lead troops to support Liu Dai. When Yuan Shao later developed a rivalry with Gongsun Zan, the latter broke off relations with Liu Dai as well. Gongsun Zan said to Fan Fang, "If Liu Dai does not drive away Yuan Shao's family members, you will lead your men back to our territory. I'll attack Liu Dai after I've eliminated Yuan Shao." Liu Dai was at a loss over how to handle the crisis when his adviser Wang Yu (王彧) told him to consult Cheng Yu, and Liu Dai heeded his suggestion. Cheng Yu urged Liu Dai to stand on Yuan Shao's side and Liu followed the advice.[6] Gongsun Zan was defeated and conquered by Yuan Shao eventually.
In 192, thousands of former Yellow Turban rebels from Qing Province swarmed into Yan Province and gathered in Dongping County. Liu Dai wanted to attack the rebels but Bao Xin advised him against it. Liu Dai ignored Bao Xin and proceeded to attack the Yellow Turbans, and was defeated and killed in battle.
14世紀の歴史小説『三国志演義』では、軍閥曹操が燕州を征服した際、劉岱は降伏せざるを得なかった。領地を失った劉岱は劉備を攻撃したが敗北し、地位を奪われた。劉岱は顧問の包信の助言に従い曹操に加わり、黄巾の乱の鎮圧に尽力した。功績が増えるにつれ、劉岱は自信過剰になり、包信の忠告を聞き入れなくなったため、二人は命を落とした。