范蠡
In 196 BC, Hán Xin allied with the Xiongnu again to attack the Han Empire, and occupied the town of Canhe (; possibly the place where a decisive battle occurred 600 years later). Chai Wu (), the Han general assigned to fend off the invasion, wrote a letter to Hán Xin, asking him to surrender to the Han Empire. Chai Wu also told Hán Xin that he had a chance of being pardoned since his betrayal was not as serious as others' so the emperor would be more inclined to forgive him. However, Hán Xin refused, claiming he had already committed high treason three times by allying with the Xiongnu on three occasions to attack the Han Empire. He also cited the examples of Fan Li, Wen Zhong and Wu Zixu to imply that Emperor Gaozu would not be as forgiving as Chai Wu claimed.