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 .
From 1420 to 1644 , the Forbidden City was the seat of the Ming Dynasty .
In April 1644 , rebel forces led by Li Zicheng captured Forbidden City , and Chongzhen , the last emperor of the Ming Dynasty , hanged himself on Jingshan Hill .
From 1420 to 1644 , the Forbidden City was the seat of the Ming Dynasty .