Introduction to the inner court area: The back sleeping area, also known as the inner court, is the collective name for the royal living area in the northern part of the Forbidden City. The building complex is centered on the Qianqing and Kunning Palaces, the main sleeping palaces where the emperor and empress lived, and the emperor's palaces are distributed to the east and west. The Bian Palace, the East Sixth Palace and the West Sixth Palace where the concubines lived, as well as the Qiandong Wusuo, Qianxi Wusuo and other courtyards where the princes lived, as well as the Ningshou Palace courtyard built for Emperor Qianlong on Waidong Road and the Waixi Palace The road leads to the Cining Palace, Shoukang Palace, Shou'an Palace and other areas where the Queen Mother and concubines take care of themselves in their old age.