The Palace of Earthly Tranquility is a double-eaved building, 9 bays wide and 3 bays deep. In the Ming Dynasty, it was the residence of the Empress. In the Qing Dynasty, large portions of the Palace were converted for Shamanist worship by the new Manchu rulers. Thus, the front part of the hall featured shrines, icons, prayer mats, and a large kitchen where sacrificial meat was prepared. From the reign of the Yongzheng Emperor, the Empress moved out of the Palace following the Emperor's move out of the Palace of Heavenly Purity. However, two rooms in the Palace of Earthly Harmony were retained for use on the Emperor's wedding night. The wedding ceremony would be held in the main room, and afterwards the Emperor and Empress would retire to one of these rooms.