Chongzhen Emperor (1611–1644)
Born 1611 CE, died 1644 CE.
The Chongzhen Emperor (6 February 1611 – 25 April 1644), temple name Ming Sizong, personal name Zhu Youjian, courtesy name Deyue, was the 17th and last emperor of the Ming dynasty, reigning from 1627 to 1644. He succeeded his elder brother, the Tianqi Emperor. "Chongzhen", the era name of his reign, means "honorable and auspicious." Zhu Youjian was son of the Taichang Emperor. As emperor, he battled peasant rebellions and was not able to defend the northern frontier against the Manchu. When rebels under Li Zicheng reached the capital Beijing in 1644, he committed suicide, ending the Ming dynasty. The Manchu formed the succeeding Qing dynasty. 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). The Qing dynasty gave the Chongzhen Emperor the temple name "Huaizong" (懷宗), but the temple name was later revoked.
Text from the Wikipedia article Chongzhen_Emperor, licensed CC BY-SA 4.0.