Chongzhen Emperor
In 1645, Zhu Yousong, who had proclaimed himself the Hongguang Emperor of the Southern Ming dynasty, gave the Chongzhen Emperor the temple name "Sizong". In historical texts, "Sizong" is the most common temple name of the Chongzhen Emperor, even though the Southern Ming rulers had changed "Sizong" to "Yizong" (毅宗) and then to "Weizong" (威宗). During the Qing dynasty, the Chongzhen Emperor's temple name was changed to "Huaizong" (懷宗).