The site of the Nine-Cheng Palace is located in the new city of Linyou County, Shaanxi Province. It was originally the Renshou Palace of the Yuan Dynasty. It was built in the 13th year of the Kaihuang (593). It was supervised by the right servant She Yang Su. The famous architect Yu Wenxuan will be a bigsmith for the inspection school. He will undertake the design and supervision. The Kaihuang was built in March in the 15th year. Tang Zhenguan five years (631) Tang Taizong repaired and expanded, renamed the 90% Palace.