Qin Shubao
Qin Shubao was a real person in the history, and in this book, his life before joining the Tang Dynasty's troops was similar to the real history. However, some stories after he joined Tang Dynasty, especially after Li Shimin became the emperor, were fictional. In real history, Qin Shubao retired after Li Shimin became the emperor because of his illness. It was Li Jing (李靖) and Xu Shiji (徐世勣) rather than Qin Shubao that defeated the Turks.