Introduction to the place where Emperor Chongzhen hanged himself: An ancient locust tree at the foot of the eastern foothills of Jingshan Mountain is said to be the place where Emperor Chongzhen hanged himself. In the 17th year of Chongzhen (1644), Li Zicheng led a peasant uprising army to invade Beijing. Seeing that the power was gone, Emperor Chongzhen came to Jingshan to write his last edict and hanged himself on a locust tree here. "History of the Ming Dynasty" records: "At the end of Ding Dynasty, the inner city fell, the emperor collapsed in the Longevity Mountain, and Wang Chengen died." Li Qing, a native of the late Ming Dynasty, recorded in "Notes on Three Tans": "Then he and Cheng'en met under the ancient tree of Hang Mei Mountain."