Who knows who was the last emperor of the Sui Dynasty in history? When he was not an emperor, he ranked first.

You Yang (605-6 19), the grandson of Emperor Wu of Han Dynasty and the third son of Yang Zhao, the eldest son of Emperor Wu of Han Dynasty, was originally named Chen Wang, and later renamed Dai Wang. When Yang-ti went out for a cruise in his later years, he was ordered to stay in Chang 'an. In 6 17 and 10, Li Yuan invaded Chang 'an, established himself as emperor, changed his country name to "Yining" and respected Emperor Yang-ti as the emperor's father. I have been in office for half a year. Wu De died two years ago at the age of 15.