This stone placenta chamber located in Changgyeonggung Palace was built to enshrine the placenta and the umbilical cord of King Seongjong (r. 1469-1494). It was originally in Gwangju of Gyeonggi-do but, as it was considered the most beautiful of all the remaining heritage of the type, moved to the current location where Yi Royal Household Museum was set up during the colonial period (1910-1945). The Joseon Dynasty (1392-1910) maintained the tradition of storing the placentas of the royal heirs at the auspicious sites across the country under a belief that they were directly connected with the destiny of the dynasty.