Chengqian Palace was built in the eighteenth year of Yongle in the Ming Dynasty (1420) and belonged to one of the six palaces in the east of the inner court. At the beginning, it was called Yongning Palace, and it was renamed Chengqian Palace in August of the fifth year of Chongzhen (1632). The old name of the Qing Dynasty along the Ming Dynasty. It was rebuilt in the 12th year of Shunzhi (1655) and slightly repaired in the 12th year of Daoguang (1832).

Chengqian Palace is two courtyards, the main gate is southward, and the name is Chengqianmen. The main hall of the front yard is the Chengqian Palace, the face is wide 5 rooms, the yellow glazed tile rests on the top of the mountain, the eaves corner places 5 beasts, the eaves are applied with a single warp and a single ang five steps on the bucket, the eaves inside and outside are decorated with dragons and phoenixes and the seal color painting. Open the door in the bright room, the sill wall and sill window between the second and the tip, and the double cross Siling flower door and window. The indoor square bricks are on the ground, the ceiling is painted with two phoenixes, and the Qianlong Emperor's imperial inscription "Decheng Roushun" plaque is hung in the middle room. In front of the hall is a spacious platform. There are 3 rooms with the hall in the east and west, the door is opened in the bright room, the yellow glazed tile is hard mountain top, and the eaves are decorated with spindle color paintings. In the seventh year of Ming Chongzhen (1634), the plaque was placed in the east and west side halls, called Zhenshun Zhai, Mingde Hall.

The main hall of the backyard is 5 rooms, the door is opened in the bright room, the yellow glazed tile is the top of the mountain, and the eaves are applied to the bucket, decorated with dragon and phoenix and the seal color painting. There are transepts built on both sides. There are 3 rooms in the east and west halls, all of them are open in the bright room, and the yellow glazed tile is the top of the mountain, decorated with the color painting of the rotorad. There is a well pavilion in the southwest corner of the backyard. This palace maintains the pattern of the early Ming Dynasty.

The name "Chengqian" means to inherit the will of heaven and can be the palace bed of the emperor's favorite concubine. This palace was the residence of the noble concubine in the Ming Dynasty. The Qing Dynasty was inhabited by the concubines. Tian Xiuying, the favorite concubine of Emperor Chongzhen of the Ming Dynasty, lived here. Qing Dynasty Shunzhi Emperor Xiaoxian Empress Dong Eshi, Kangxi Emperor Xiaoyiren Empress Tong Jiashi, Qianlong Emperor Xiaoyi Chun Empress, Qianlong Emperor Huixian Emperor Guifei, Daoguang Emperor Xiaoquan Empress, Lin Guifei, Jia Guiren (Jia Guifei), Xianfeng Emperor Yun Concubine, Wan Guiren have all lived here. However, after that, Yun Concubine and Wan Concubine, Wan Guiren moved out of Chengqian Palace. So far, only Yuyan lives alone in this Chengqian Palace.

With a turn of his eyes, he came to the Palace of Nourishing Hearts, where the emperor was meeting Prince Gong and Su Shun, discussing matters related to the ceremony of sacrificing to the heavens, and then summoned several ministers, and finally reached an agreement. Yi also thought of the hopes of the Taiping army and the information recorded by later generations. The Taiping Army is the abbreviation of the Taiping Heavenly Kingdom Army, which refers specifically to the peasant army under the leadership of the Taiping Heavenly Kingdom from the establishment of Hong Xiuquan Yong'an in 1851 to the fall of Tianjing in 1864.

The Taiping Army was a weapon to implement the ideals of the Taiping Heavenly Kingdom, and fought to the death against the Qing government forces and foreign forces from beginning to end. In the early days, the Taiping army had strict military discipline and strong combat effectiveness, which made the regular army of the Qing government invincible.

After the Tianjing Incident, the discipline and combat effectiveness of the Taiping Army were greatly inferior to before, and in the process of fighting against the Hunan Army established by Zeng Guofan, it gradually fell behind.

The reason is that most of the elite of the Taiping Army died in battle, and the former faith was also destroyed by ruthless infighting, and the quality of new recruits declined, and many Qing soldiers often joined the Taiping Army after defeat, which further aggravated the decline of the Taiping Army's strength.

At the same time, it is also a thorn in the side of Western countries, and this aspect is also one of the reasons.

In 1852, the Taiping army entered Hunan from Guangxi, and the officers and soldiers of Hunan were scattered. Guo Songtao strongly persuaded Zuo Zongtang and Zeng Guofan, who also lived in the countryside, to come out and make contributions. In the following years, Guo has been accompanying Zeng Guofan as counselor in military affairs and has made many achievements. At the end of 1856, he left Hunan and went north to Beijing to work as an editor of the Hanlin Academy. On April 12, the eighth year of Xianfeng (1858), the Shizhen Ji Department of the Taiping Army was led by Xian Tianyan and Cheng Mou, the military and political secretary, to occupy Yongkang, and the only recalcitrant ones were Vice Master Xie (Xie Lansheng), Xu Yiren and several others. After the occupation, the 10 townships were divided into 5 army commanders, 25 division commanders and 125 brigade commanders. Huangxitan led the people to defect to the Taiping Army at the request of Fajie, and the number of troops grew to more than 2,000 people. On the morning of the seventh day of June, the militia group suppressed Huangxitan, and more than 100 people were killed. Then tens of thousands of people gathered in Youxian, Yihe, and Taiping townships to surround the county. The Taiping army made a tactical retreat, and withdrew slightly before the militia group was encircled, and in early June, Bayong recovered to be occupied by Zhou Tianpei, the general soldier of the Qing Dynasty.