When Yu Wan saw the previous Emperor's scroll, she paid special attention to it. Even though Yan Jiuchao said that the Emperor was not the flesh and blood of the Emperor of Nanzhao, she still had some doubts. If Prince Yan had not taken the blame for the Emperor, how could his descendants have been persecuted by the royal family of Nanzhao?
However, from the major deeds of the late Emperor, he had never brought the late Empress to visit Nanzhao Nation, and the Emperor of the Nanzhao Nation had never visited the Great Zhou. In theory, the two of them could not have met up.
The age didn't match either.
The Emperor of Nanzhao was only five years older than the Emperor and nine years older than Prince Yan. No matter how she looked at it, it was impossible for him to get a woman pregnant.