Zhen Huan's prototype is the Empress Dowager Chongqing, she is the biological mother of Emperor Qianlong, the Qing Dynasty Emperor Xiao Shengxian Empress Niu Hulu (1692-1777), the great-granddaughter of Baturu Eyidu, and the daughter of Sipin Dianyi Lingzhu.
In the forty-third year of Kangxi (1704), the 13-year-old Niu Hulu was given into the palace of Prince Yong as Gege, and in August of the fiftieth year of Kangxi (1711), he gave birth to four sons Hongli (that is, the later Qianlong Emperor). After Yongzheng inherited the throne, he was named Concubine Xi and lived in Jingren Palace; In 1730 (the eighth year of Yongzheng), he entered the concubine Xi.
In September 1735 (the thirteenth year of Yongzheng), Qianlong ascended the throne and was honored as the Empress Dowager of Chongqing. Since then, the state has repeatedly added emblems. He has toured with Qianlong 3 times in the south, 3 times in the east, 3 times in Wutai Mountain, and 1 time in Zhongzhou; Tan Dongling and Qiu Qiu Mulan go together every year. Chongqing Empress Dowager's Longevity Festival, Emperor Qianlong made the celebration very lively every time, so that his mother enjoyed the joy of family. In particular, the 60th, 70th, and 80th birthdays of the Queen Mother were more and more grand each time, and the whole country celebrated them together, and the scale was grand.
In the forty-second year of Qianlong (1777), he died of illness at the age of 86 and was buried in the Qing Dynasty West Mausoleum, the northeast of Tailing, and the name of Taidong Mausoleum. On the confession, buried in the northeast of the Tailing of the Qing Xiling, called the Taidong Mausoleum, the temple of Tai. In the fourth year of Jiaqing (1799) and the twenty-fifth year (1820), he was appointed as the Empress of Xiaosheng Ci Xuankang Huidun and Chenghui Renmu Jing Tianguang Shengxian. She was the longest-lived empress dowager of the Qing Dynasty.