This palace building was used as the official residence for the mothers and grandmothers of some Joseon kings, including Queen Dowager Insu (1437-1504) who mothered King Seongjong (r. 1469-1494) who established Changgyeonggung Palace, Queen Inhyeon (1667-1701), and Royal Lady Hyegyeonggung Hong (1735-1815). The hall is also famous as the King Jeongjo’s birthplace. Historical records say that Crown Prince Sado, the king’s father, dreamt of a dragon descending from heaven three years after he began to serve as regency. He painted the dragon he saw in the dream on a wall inside the hall, but the painting has not survived.