Guo Si
Ma Midi became disappointed with Wang Yun and predicted that he would not remain in power for long. He was proven right: Later in 192, Dong Zhuo's followers, led by Li Jue and Guo Si, seized power from Wang Yun, killed him, and subsequently took control of the central government with Emperor Xian as a puppet ruler. Li Jue and Guo Si appointed Ma Midi as Grand Tutor (太傅) and Manager of the Affairs of the Masters of Writing (錄尚書事).