abstract:Bi Gui (died 249), style name Zhaoxian (昭先), was an advisor to the Cao Wei regent Cao Shuang during the Three Kingdoms period of Chinese history. Later, when Cao Shuang was tricked by Sima Yi and lost his power in the Incident at Gaoping Tombs, Sima got rid of almost all of Cao's advisors, including Bi.