The background of the two plays is the Qianlong period, and Wei Yiwan and Wei are the same person from the historical prototype. The prototype of Wei and Wei is the filial piety queen.
Historical prototype
Empress Xiaoyi Chun (172710/October 23rd-1February 28th, 775), Wei Jiashi, mother of Emperor Qianlong and Emperor Jiaqing, daughter of Wei Qingtai, third-class benefactor.
After ten years of Qianlong, he was named Wei Guiren, and in the same year, he was named Lingqi; In the thirteenth year of Qianlong, he was promoted to princess; In the twenty-four years of Qianlong, he was promoted to the imperial concubine; Twenty-five years after Qianlong, he gave birth to the fifteenth son of Emperor Jiaqing. After thirty years of Qianlong, Queen Nora's hair was broken and fell out of favor, and Wei was promoted to the imperial concubine; In the winter of the thirty-eighth year of Qianlong, Yan Yong, the son of the imperial concubine, was secretly kept by Emperor Qianlong.
Emperor Guifei died on the 29th of the first month of the 40th year of Qianlong, at the age of 49. On February 11th, he was ordered to take the imperial concubine. Qianlong was buried in Yuling on October 26th, 40th year. On the third day of September in the 60th year of Qianlong, Emperor Qianlong declared the fifteenth son of the emperor, MOON PHASE Jiayan Wang, as the Crown Prince, and at the same time posthumously granted the Crown Prince's biological mother and made Yi the filial piety queen. After Jiaqing and Daoguang, the whole of posthumous title is "filial piety, respect for prosperity, kindness, benevolence, patience, wisdom, philosophy, wings, heaven, jade, holiness and purity".