"The Incident at Gaoping Tombs (\u9AD8\u5E73\u9675\u4E4B\u8B8A) in 249 was a coup d'\u00E9tat that occurred in the state of Cao Wei during the Three Kingdoms period of Chinese history. The parties involved were Cao Shuang and Sima Yi. Sima Yi seized power during the coup and had Cao Shuang killed. The coup increased the Sima clan's power and influence in Wei, thus providing the foundation of the Jin Dynasty."@en .