司马昭
After Sima Shi died in Xuchang, Sima Zhao took over his brother's position as the regent of Wei. In an attempt to prevent a transfer of power from Sima Shi to Sima Zhao, the Wei emperor Cao Mao ordered Sima Zhao to remain in Xuchang and let Fu Gu lead the army back to the capital Luoyang. However, Fu Gu and Zhong Hui met up with Sima Zhao, defied Cao Mao's orders, and returned to the capital together.