Hall of the Supreme Principle () is one of the Six Western Palaces of the Forbidden City, which used to be residences of imperial concubines. The palace is western to the Palace of Eternal Longevity, northern to the Palace of Eternal Spring, southern to the Hall of Mental Cultivation. They are all found in Beijing, China. History The palace was built in 1420 and named "Palace of Endless Good Omens" () by Jiajing Emperor in 1535. The palace was renamed as "Hall of Supreme Principle" in 1741. In 1860, Taiji hall was connected with Changchun Palace by converting its rear Tiyuan hall into Opera stage with veranda, where Empress Dowager Cixi could watch Peking opera performances. Hall of the Supreme principle has five rooms, two side halls and rear hall. The Qixiang gate are equipped with wooden screen believed to protect the house from mischievous spirits. The main hall has gabled roof covered with yellow glazed tiles like most palaces in Forbidden City. The beams are decorated with Suzhou style paintings, golden dragons and phoenixes. The walls are intricately decorated with medallions of phoenixes sitting on the mountain, untypically for other palaces. Residents Ming Dynasty Qing Dynasty Gallery References Buildings and structures in Dongcheng District, Beijing Forbidden City