Kija's Tomb is a burial site located on Moran Hill in Pyongyang, North Korea. The tomb is said to be the burial place of the controversial, semi-legendary Shang sage Jizi (Gija in Korean), a member of the Shang imperial family and relative to the tyrannical King Zhou, last ruler of the Shang dynasty. Jizi allegedly fled China to Korea, where he founded the state of Gija Joseon and eventually succeeded the Dangun as king of Gojoseon. Legend says that Gija brought to the Korean people many skills from China, such as agriculture and weaving; he is also credited with founding the city of Pyongyang. The site of Gija's burial mound was identified during the Goryeo Dynasty by King Sukjong, who constructed the first mausoleum at the site in 1102 CE. A memorial temple was later added and the mausoleum was enlarged and repaired in 1324 and again in 1355. In 1570 King Seonjo of Joseon erected a monument at the site requiring all people riding past to dismount out of respect. When Korea was under Japanese rule, the site was heavily promoted as a tourist venue by the Japanese, who tempered Korean ethnic nationalism by pointing out that the first 'Korean' kingdom was founded by a foreigner. However, the North Korean government denies Gija's existence as a fabrication of the Japanese, and has neglected and defaced the tomb. The tomb was allegedly excavated in the 1960s, which in turn yielded nothing but broken bricks and pottery. The current state of the tomb is unknown, though it is believed to have been destroyed shortly after its excavation. The site was purposefully excluded from the list of National Treasures of North Korea.