King of Wu
In 920, Yang Longyan grew deathly ill. While Yang Meng was his oldest younger brother, Xu disliked Yang Meng and did not want him to succeed Yang Longyan, so he instead issued an order in Yang Longyan's name formally naming Yang Pu regent. When Yang Longyan subsequently died, Yang Pu took the throne as the King of Wu, while Yang Meng was moved from Chu Prefecture to serve as the military prefect of Shu Prefecture (舒州, in modern Huangshan, Anhui).