Introduction to Cangzhen Gate: Cangzhen Gate is a glazed wall-mounted gate on the east wall of the East Sixth Palace of the Inner Court, facing east. It was built in the early Ming Dynasty and was originally called the East Gate of the Palace. In the 14th year of Jiajing's reign in the Ming Dynasty (1535), it was renamed Cangzhen Gate. The gate is opposite Zhaohua Gate to the west, and Dongtongzi Long Street leads to the east, diagonally opposite to Duanhe Gate. It is an important gateway for access to the East Sixth Palace of the Inner Palace. This door is not always open, but is opened during snow clearing or construction work.
In the fifty-sixth year of the reign of Emperor Kangxi of the Qing Dynasty (1717), Empress Xiaohuizhang (Emperor and Empress of Shunzhi), the founder of the Qing Dynasty, did not hesitate, and the emperor set up a curtain in Cangzhen Gate to live. In the first year of Yongzheng (1723), the Empress Dowager Anrenshou (the biological mother of Emperor Yongzheng) was entrusted with the palace in Ningshou Palace. Emperor Yongzheng once set up a lean-to inside this gate. In the 19th year of Qianlong's reign (1754), board houses and screen doors were built on both sides of Cangzhen Gate.