Sui Dynasty is china's history, the great unification of the Southern and Northern Dynasties, the lower Qi Tang Dynasty, the establishment of the Sui Dynasty ended the division of nearly 300 years since the end of the Western Jin Dynasty, it can be said that Yang Jian unified China is the desired return, the Sui Dynasty at the beginning of the establishment, in the face of a hundred wastes to be revived, Sui Wen Emperor made great efforts to govern, in the political, economic and other aspects of the system to make a series of reforms, thus giving birth to a prosperous dynasty, known as the "rule of the emperor", but unfortunately Sui Wen Emperor will not expect that the prosperity he created is only a short-term prosperity after his death. The Sui Dynasty became a short-lived dynasty in history.
In the short thirty-eight years of the Sui Dynasty, the two emperors who are most familiar to everyone are the Sui Wen Emperor Yang Jian and the Sui Emperor Yang Guang, especially the deeds of the Sui Emperor after he ascended the throne, exhausting the army, marching on Goguryeo three times, requisitioning millions of coolies to build large-scale national projects, building outer cities, and building palaces throughout the country, just to satisfy their own extravagant and lavish life, repairing the Grand Canal of the Sui Dynasty, although the Grand Canal of the Sui Dynasty played an extremely important role in history, but at that time, it did cause the people to be unhappy, and these acts of disregarding national strength were disregarded. As a result, peasant uprisings spread throughout the country, and the Sui Dynasty quickly turned from prosperity to decline until it became terminally ill.
The Sui Emperor was the emperor of the fallen country, and it was his absurd behavior that directly led the country to the road to extinction, but the person who really bore the name of the country was not the Sui Emperor, but the Sui Gong Emperor Yang You, who was the third emperor and the last emperor of the Sui Dynasty. If the Sui Dynasty could continue, yang you could not become emperor in any way, he was the grandson of Yang Guang, the sui emperor, the third son of Yang Zhao, the prince of Yuande, although he was the son of the prince, he was still shu out, and the prince died young, and his three youngest sons were crowned princes, the eldest son Yang You the Prince of Yan, the second son Yang Tong the Prince of Yue, and the acting king Yang You.
Yang Tong, Yang You, and Yang Hao all served as emperors at the end of the Sui Dynasty, Yang Hao's father Yang Jun the Prince of Qin was a maternal brother of the Sui Emperor Yang Guang, Yang Hao's mother Princess Cui poisoned his father Yang Jun, Yang Hao sat for consecutive sins and disqualified him from the throne, and after the Sui Emperor ascended the throne, he let him inherit the title of Prince of Qin, and as a result, Yang Hao again interacted with the general Yuwen Shu, so he was dismissed from office. In fact, no matter who they are, as long as they are members of the Yang family and can represent the imperial family, they will be regarded by all the forces in the country as "blackmailing the son of heaven to order the princes" and become puppet emperors, and the emperors who can be emperors for a long time are completely up to them.
In 616 AD, he traveled to Xingjiangdu in a dragon boat, coinciding with the wagangzhai chieftain Li Mi occupying Luokou and cutting off the Sui Emperor's way back to the west, did not expect the Sui Emperor to care at all, he also thought of approaching the capital of Dingdu, partial to The East of the An'an River, which could be bitter to a group of homesick generals and soldiers, so they plotted to rebel against the emperor and return to the west, and also simply united with the culture of the powerful ministers and conspired to rebel. In 618, the rebels rushed into Xuanwu Gate, and Yu Wenhua and sent the lieutenant Ling Huxing Da to kill Emperor Jue, and also killed the Sui clan and foreign relatives in the Guangjiang Capital Palace, leaving only Yang Hao, the nephew of the Sui Emperor, the Prince of Qin, because Yang Hao had close relations with his brother Yuwen Zhihe, so Yu Wenzhi saved his life.
Yang Hao was proclaimed emperor, Hou Yu Culture and self-proclaimed grand chancellor, Yu Culture and returned to Chang'an with 100,000 troops, and Yang Hao was wrapped up in his companions. After Yu Wenhua and the killing of the Sui Emperor, The Taifu Qing Yuanwendu, the Wuwei general Huangfu Wuyi, and the Right Shilang Zhonglu Chu proposed that they recognize Yang Tong's son Yang Zhao, the crown prince of Yang Dong, who was closest to the imperial family, and every time the Sui Emperor went on a tour, Yang Dong stayed in the eastern capital luoyang to manage the rear affairs, so Yang Dong was proclaimed emperor in Luoyang, and he was afraid of Yu Wenhua and his army, so he sent people to surrender Li Mi, And Li Mi also had this intention, and the two sides reached a friendly cooperation, and Li Mi resisted Yu Wenhua to the east and repeatedly passed on the good news. After Yu Wenhua was defeated by Li Mi, he sent people to poison Yang Hao before his death, and established himself as emperor with the national name Xu.
Another warlord force, Wang Shichong, inspired the generals, and after Li Mi became the only one in the dynasty, when the people who had originally had a vendetta against Li Mi would be targeted, Wang Shichong after some planning to eliminate Yuan Wendu and other forces, so that the emperor also thought that he was the rebel minister, and trusted him very much, after which Wang Shichong monopolized the power of the dynasty. After Yang Tong knew the truth, he was indignant in his heart and wanted to get rid of Wang Shichong, but it was too late, after Wang Shichong defeated Li Mi, Yang Tong completely became a puppet emperor in name only, and later he was forced to give the throne to Wang Shichong, and was also imprisoned in the Hanliang Temple, when there were ministers in the court who supported Yang Dong, Wang Shichong was not at ease, afraid that Yang Dong would be restored in the future, and eventually sent someone to kill Yang Dong.
Since the warlords competing in the world all had a puppet emperor, then Li Yuan also chose a prince, when the Sui Emperor conquered Goguryeo, Yang You was appointed to stay in Chang'an, so when Li Yuan's army invaded Chang'an, he supported Yang You to the throne, at this time the Sui Emperor was still alive, Yang Hao and Yang Dong were not proclaimed emperors, he made Yang Youyao honor the Sui Emperor as Emperor Taishang, and when the time was ripe, in June 618, shortly after the Sui Emperor was killed, Li Yuan forced Yang You to "zen concession" to him. In June of the same year, Wang Shi killed Yang Tong, and in September of the same year, Yu Wenhua and poisoned Yang Hao, which shows that Yu Wenhua and Wang Shichong kidnapped Li Yuan, who was all learning from the emperor, but they did not succeed, and eventually Li Yuan became emperor.
History is written by the victors, in the historical records, there are few records about Yang You, did not target Li Yuan, who seized the throne, in August 619 AD, Yang You died of illness, but was it a natural illness or was he killed by a conspiracy? We don't know.