Hue first occupied the city, and later it was occupied by Vietnam. In the dispute between Zheng and Ruan, it became the ruling center of Guangnan Ruan. From 1635 to 1687, Ruan Fulan (Zongshen) and Prince Taizong (Taizong), lords of Ruan clan in Guangnan, established Jinlong City as their capital here. Later, it was expanded by PHC trn nguy?n (Yingzong) and Ruan Fukuo (Sejong) and renamed Fuchun (Vietnamese: phú xu? N/ Fuchun). Ruan Fukuo built palaces and pavilions in Fuchun, such as Jinhua Hall, Guanghua Hall, Yaochi Pavilion, Chaoyang Pavilion, Wenguang Hall, Lejiu Hall, Zhengguan Hall, Zhonghetang, Yirantang, Changchun Hall, Jianruiyun Pavilion, Tonglexuan, Neiyuan Hall and Jiangxiang Pavilion, and built Jianyang Chunfu in the upper reaches of Xiangjiang River, including Changle Hall and Yuewuxuan.
After Ruan established Hue as his capital, he expanded the Forbidden City on a large scale on the basis of the original palace and in accordance with the regulations of the Forbidden City in Beijing. In April of the third year of Jialong (1804), construction of Miyagi was started, and Ruan, Li Zhi and Fan Wenren were in charge.
Hue Imperial City is located in the south of Hue, the capital city, with a square layout, a symmetrical axis, a city wall and a moat around it. The main entrance to the south is the meridian gate, and the main hall is the Hall of Supreme Harmony. On the left of the Hall of Supreme Harmony are the Ancestral Temple and Zhao Temple, on the right are the Shihe Temple and Xing Temple, and on the north is the Grand Palace Gate, which is the Forbidden City where Ruan Chao's concubines live. On the west side of the Forbidden City, there are Shouzhi Palace and Xingning Palace where Empress Dowager Taifei lives, and Yu Garden and Yingzhou Garden on the east side. There are also service buildings such as the Office of the Interior, Imperial Hospital, Dining Hall, Elephant Factory and Horse Factory in the Imperial City.
The circumference of the wall of Hue Imperial City is 640 feet (2,500m), the length from north to south is 15 1 foot (604m), and the width from east to west is155ft (620m). The wall is 1 ft 5 inches (6.5 meters) high and 2 feet 6 inches (1.04 meters) thick.
Jinchi, the moat of Hue Imperial City, was dug in the Jialong period and expanded in the 14th year of next year.