Moon on the Prairie: Princess of the Tang Dynasty and Her Relatives

In the fourth year of the Kaiyuan period of the Tang Dynasty, Li Dayu, the Khan of the Xi tribe, came to propose marriage. In order to stabilize the border, Emperor Xuanzong of the Tang Dynasty, Li Longji, gave the legitimate daughter of Anguo general Xin Jingchu the title of "Princess Gu'an" and married her to the Xi tribe. When the imperial edict came, Mrs. Xin Li went to the grassland without leaving her legitimate daughter. She actually concealed the truth and asked her concubine Xin Yan to take her place. Although Xin Yan came from a humble background, he had great ambitions and boldly accepted the order to embark on the journey of marriage. After her marriage, she assisted the Khan with her intelligence and courage, established education and legislation, sent her children to study in the Tang Dynasty, created the Wolf Poison Paper, and the grassland became increasingly prosperous. However, the good times did not last long, and Khan was eventually killed by a traitor. The princess found out the truth, punished the traitor and put an end to the chaos, stabilized the border, and became famous in Chang'an. Xuanzong rewarded him generously and was praised by the world. Unexpectedly, the legitimate mother, Li, was greedy for a reward and revealed her past, and begged the emperor to replace her with her legitimate daughter. Xuanzong was furious and thought of the difference between his concubine and concubine, so he finally ordered Princess Gu'an to reconcile with the new Khan. The princess had long regarded honor and favor as clouds and smoke, and exchanged her own responsibility for the stability of the border and the prosperity of the grassland, leaving an eternal legend.