Zheng Xuan (127–200 CE) was a preeminent Confucian classicist of the Eastern Han dynasty. His courtesy name was Kangcheng, and he was a native of Gaomi, Beihai Commandery (in present-day Gaomi, Shandong).
Brief: This article narrates Sima Yi’s legendary coup. Faking frailty to lull Cao Shuang, he seized control during the Gaopingling ceremony in 249 AD. He tricked Cao Shuang into surrender with false clemency, then eliminated him. The coup shifted power from the Cao clan to the Sima family, reshaping the Three Kingdoms.