Sima Liang
After the coup against Empress Yang Zhi, the emperor's grand-uncle, Sima Liang, the Prince of Runan, became regent. Liang threatened Sima Wei and pressured him to return his fief of Jing Province. A few weeks later Empress Jia and Wei, who was at the time in control of a battalion of imperial guards, conspired to have Liang killed. An imperial edict was issued accusing Liang of treason and Wei led another coup killing Liang.