Yu Fan
Yu Fan (164–233), courtesy name Zhongxiang, was a Chinese essayist, politician, and writer of the state of Eastern Wu during the Three Kingdoms period of China. Initially a minor officer under Wang Lang, the Administrator of Kuaiji Commandery, Yu Fan later served under the warlord Sun Ce, who conquered the territories in the Jiangdong (or Wu) region in a series of campaigns from 194–199. Sun Ce regarded him highly and once enlisted his help in persuading Hua Xin, another commandery administrator, to surrender. After Sun Ce's death, Yu Fan continued serving under Sun Quan, Sun Ce's younger brother and successor, as a Cavalry Commandant. Sun Quan confined him for some time due to his rude and disrespectful behaviour, but released him in 219 and allowed him to accompany the general Lü Meng to attack Jing Province. During the Jing Province campaign, Yu Fan warned Lü Meng about a possible ambush when Lü Meng was celebrating a minor victory, and was proven right later.