Crown Prince Sado
Crown Prince Sado (1735-1762), having been killed by his father King Yeongjo, was buried on Mr Baebongsan in Yangju. In 1789, his body was moved to its current location, then called Hyeollyungwon, by his son King Jeongjo. In 1816, Prince Sado's wife, Princess Hyegyeong, was buried with her husband. In 1899, when Prince Sado and Princess Hyegyeong were posthumously elevated in status and given the titles Emperor Yangjo and Empress Heonyeong, the tomb was also upgraded and renamed Yungneung.