The Sui Emperor Yang Guang was the second emperor of the Sui Dynasty, a famous tyrant in history, he was very talented, but his personal character was very poor. In his hands, the once-mighty Sui Dynasty eventually perished.
According to the Zizhi Tongjian. Volume 180 records that in July of the fourth year of Renshou (604), Emperor Wen of Sui, Yang Jian, was bedridden, at this time Yang Guang and Yang Su conspired to ascend the throne, but unexpectedly the matter was revealed by Emperor Wen, and Emperor Wen was furious and wanted to immediately abolish Yang Guang's position as prince and make Yang Yong crown prince. Emperor Wen sent his ministers Liu Shu (Emperor Wen's son-in-law) and Yuan Yan to draw up an edict of abolition. Who expected that the eyes and ears who were arranged by Yang Guang in the palace learned of it, and hurriedly informed Yang Guang that Yang Guang did not stop doing two things, and immediately sent someone to arrest Liu Shu and Yuan Yan and throw them into prison. He immediately sent Emperor Wen's attendants away, replaced them with his own men and horses, and sent his own cronies Zhang Heng to Emperor Wen's palace to take charge of the attendants, but in fact, Emperor Wen was placed under house arrest. Not long after, Emperor Yang Jian of Sui, who had been wise and confused for a while, chose the wrong successor for a while, fell ill and died. According to historical records, Yang Jian was killed by Yang Guang's own hands.
The incident of Yang Guang's father is recorded not only in the Zizhi Tongjian, but also in many historical books. It is recorded in many chapters of the Sui Shu Lie biography, and the Tang Dynasty literati have recorded it in the "General Calendar" and the "Outline of the Great Cause".
It can be seen from this that even if a generation of emperors, even if he was powerful during his lifetime, the crimes he committed could not be erased, they could not be washed away, and history would truthfully record them.