Taesil are shrines which stored the placenta and umbilical cords of the children of the royal family. Next to the shrine is an inscribed stone tablet with a story about the placenta of King Seongjong. This stone tablet is known as a taesilbi. These shrines are found at many locations all around Korea.
During the occupation of Korea, the Japanese moved almost all the Joseon royal family taesil to Seosamneung Royal Tomb. Seosamneung is located northwest of Seoul to Seosamneung Royal Tomb in Goyang-si, Gyeonggi-do.
The taesil of King Seongjong (1457–1494) was moved here from Gwangju, Gyeonggi-do Province. Seongjong was the ninth king of the Joseon Dynasty. He ruled until his death on January 20, 1494. The shrine was moved here by the Japanese for research as it was the best preserved.