Zhang Xianzhong
Zhu Shugui was styled the general of Fu while living in Jingzhou. He was later granted the title prince of Changyang during the Regency of the Prince of Lu near the end of the Ming dynasty. In 1642, after the rebel leader Zhang Xianzhong captured Jingzhou, he followed Zhu Changrun, the Prince of Hui, to Nanjing. In 1644, the Chongzhen Emperor, the last emperor of the Ming dynasty, committed suicide in Beijing, and China fell into chaos. But Zhu Shugui, living in Nanjing under the auspices of the Prince of Fu, continued to support the legitimacy of the Ming dynasty.