Li Zicheng
From 1420 to 1644, the Forbidden City was the seat of the Ming Dynasty. In April 1644, rebel forces led by Li Zicheng captured it, and Chongzhen, the last emperor of the Ming Dynasty, hanged himself on Jingshan Hill. Li Zicheng proclaimed himself emperor of the Shun Dynasty at the Hall of Military Eminence. However, he soon fled before the combined armies of former Ming general Wu Sangui and Manchu forces, setting fire to parts of the Forbidden City in the process.