The real name of Emperor Wenwu was not publicly disclosed because the names of historical figures were often not fixed and might change with the changes of the times. At the same time, the deeds of many people in history involved many aspects, so a single name might not be able to completely summarize all their characteristics and backgrounds.
The emperor in the Crown Princess Promotion Record was Qin Mingzhen, whose name was Qin Shihuang.
Emperor Wu of the Han Dynasty was called Liu Che.
There were different theories and guesses about the Qing Emperor's true name. Some people believed that the Qing Emperor's real name was Li Yunlong because he was the Emperor of the Yun generation. Moreover, the name Qing Emperor matched his identity and status. In addition, some people speculated that his real name might be Li Yunqing or Li Qingrui, based on his sister's name and the way people addressed him. However, there were also opinions that the Qing Emperor did not have a real name in " Celebrating Years." He was only called the Qing Emperor, probably because the author did not give him a name. Thus, there was no definite answer to the Qing Emperor's real name.