The story in folklore has a long history, and people used to think that it evolved from Xue's story.
Not in history, only Xue. Li Xue (614-March 24th, 683), whose real name was Gui Ren, was a famous strategist and politician in the Tang Dynasty. Li Zhi, together with Emperor Taizong, Li Shimin, Tang Gaozong and others, created such military and political feats as "a good strategy to stop the war", "Three arrows to determine the Tianshan Mountains", "Bravely collecting Liaodong", "benevolent administration of North Korea", "loving the people like a city" and "taking off one's hat and retreating ten thousand people from the enemy". Xue's story is widely circulated among the people, and the dramatist of Yuan Dynasty created the zaju "Xue Weakly Comes Home". An anonymous writer in the Qing Dynasty wrote the popular novel Xue Dongzheng (biography of Xue Jiafu in the Tang Dynasty).
There is no Wang Baochuan or her story in history. Historically, Xue's wife, surnamed Liu, was found in Shi Zhuan and local chronicles, but she couldn't remember her name. Liu is a famous family in Hedong. With Xue's background, Liu is a suitable cremation in Hedong. When Xue wanted to bury his ancestors at home, it was Liu who advised his husband to join the army as soon as possible. "It's not too late to bury him now, because he wants to make a name for himself." On the advice of this knowledgeable wife, Xue enlisted in the army and made great achievements. Xue has five sons. Xue Ne, the eldest son, was also a general in the Tang Dynasty, and was the prototype of Xue Dingshan, a character in The Legend of the Tang Dynasty. There are also four sons: Master of ceremonies Xue Shenhuo, Xue, Xue Chuzhen and Xue Chuyu.
There is also a saying that Xue Pinggui was Shi Jingtang at the end of the Jin Dynasty, which can be found in Miscellanies of the Ruling and Opposition since Daoxian written by neighbor Chongyi. It reads: The story of Xue Pinggui and Wang Baochuan begins with giving money from the garden, matching colorful buildings, high-fiving, exploring cold kilns, driving three passes, Wujiapo, counting grain, and reaching the temple. Stone is the son-in-law of Li in the later Tang Dynasty, and it was also established by Qidan, with the title of gold, that is, the emperor returned from Xiliang in the play; Xue Pinggui's father-in-law, Prime Minister Wang Yun, actually refers to Changle Old Feng Dao. Therefore, Xue Pinggui is the pen name of Shi Jingtang. However, according to research, Shi Jingtang was actually the son-in-law of Li Siyuan, the emperor of Tang Ming. He was called Li's son-in-law here, but he was inexplicably taken to Feng Dao (the founder of the large-scale official engraving of Confucian classics in China, who lived in the later Tang Dynasty, the later Jin Dynasty, the later Han Dynasty and the last Thursday, and worshipped each other for more than 20 years, and was called the "tumbler" of officialdom. ) body. Therefore, although it is slightly consistent, it is also suspected of being attached.
To find out exactly how Xue Pinggui's story came into being, further research and exploration are needed.