Sima Liang
After Empress Jia Nanfeng, Emperor Hui's wife, in conjunction with Emperor Hui's brother Sima Wei the Prince of Chu, overthrew and killed Yang in a coup in spring 291, Sima Liang, as the most respected of the imperial princes, was summoned back to the capital Luoyang to serve as regent, along with Wei Guan. To appease those who might have been angry and had overthrown Yang Jun, Sima Liang widely promoted those who participated in the plot, and more than a thousand men were created marquesses. He and Wei, however, did try to get the government on track, but Empress Jia continued to interfere with governmental matters. They also became concerned about the violent temper of Sima Wei and therefore tried to strip him of his military command, but Sima Wei persuaded Empress Jia to let him keep his military command. Sima Wei's assistants Qi Sheng (岐盛) and Gongsun Hong (公孫宏) thereafter falsely told Empress Jia that Sima Liang and Wei planned to depose the emperor. Empress Jia, who had already resented Wei for having, during Emperor Wu's reign, suggested that he change his heir selection, also wanted more direct control over the government, and therefore resolved to undergo a second coup.