Seek the relevant historical materials and literary works about the establishment of the Prince in the last years of Qianlong.

Emperor Qianlong (including the first appearance of wind flowers, the empty mountain in Rizhao, the difficulty of stepping into the air, the long river of sunset, the dark phoenix in the clouds and the purple wan in autumn) (by February River)

The Story of Gan Long (by Levin) In addition, a lot of pen and ink in Jin Yong's novel "The Book of Sword and Revenge" also describes the legend of Gan Long's life experience.

Jiaqing was secretly established as the Crown Prince in the thirty-eighth year of Qianlong (1773). In the fifty-fourth year of Qianlong (1789), he was named Prince Jia. In the 60th year of Qianlong (1795), he was officially declared as the Crown Prince on September 3rd. On the first day of the first month of the second year, Emperor Qianlong ascended the throne in Zen. Later, the government was still under the control of Emperor Qianlong, the emperor's father, and he lived in Yuqing Palace temporarily. In the first month of the fourth year of Jiaqing (1799), after the death of Emperor Qianlong, he began to lead the government. In the face of the crisis-ridden political situation in the last years of Qianlong, Emperor Jiaqing played the banner of "salt reform" and rectified internal affairs. Killed the powerful minister, deposed and imprisoned Kun's close friend. The imperial edict strives to speak frankly, speak freely, ward off evil spirits and strengthen the body, and reward officials who have been convicted by words after the resumption of work in Changchao. A letter's contribution, luxury and frugality. Local officials are required to "know nothing about people's feelings" and report them truthfully, trying to avoid bullying, whitewashing peace, and being lazy and extravagant. However, its limited internal rectification failed to fundamentally reverse the decline of the Qing political situation.