Sima Lun
After Sima Lun usurped the throne in 301, he became concerned about Sima Jiong and also Emperor Hui's brother Sima Ying the Prince of Chengdu and distant cousin Sima Yong the Prince of Hejian, each of whom had strong independent commands. He sent his close associates to serve as their assistants. Prince Jiong refused and declared a rebellion to restore Emperor Hui. Prince Ying, Sima Ai the Prince of Changshan (Emperor Hui's brother), and Sima Xin (司馬歆) the Duke of Xinye (the son of a granduncle of Emperor Hui) all declared support for Prince Jiong. Prince Yong initially sent his general Zhang Fang (張方) with intent to support Sima Lun, but then heard that Princes Jiong and Ying had great forces, and so declared for the rebels instead. Sima Jiong's forces initially were stuck in a stalemate against Sima Lun's, but after a major victory Sima Ying's forces scored against another win of Sima Lun's troops, Sima Lun's troops collapsed, and Sima Jiong and Sima Ying's forces approached Luoyang. Sima Lun was captured by officials in Luoyang who declared for the rebellion as well, and forced to issue an edict returning the throne to Emperor Hui. He was then forced to commit suicide. Sun and other associates of Sima Lun were executed.