서황
In 219, when Cao Ren was besieged by Guan Yu in Fancheng (樊城; present-day Fancheng District, Xiangyang, Hubei), Cao Cao ordered Xu Huang to lead reinforcements to assist Cao Ren. When Xu Huang initially failed to lift the siege on Fancheng, Cao Cao contemplated personally leading his forces to save Cao Ren, and he sought his advisers' opinions on this matter. Most of the advisers told Cao Cao: "Your Highness should make haste to Fancheng, or else (Cao Ren) will be defeated."