The transition period from the Sui Dynasty to the Tang Dynasty was actually very chaotic.
The Sui Emperor Yang Guang was a cruel tyrant, although he had some beneficial measures, and even built the Grand Canal to revitalize the Sui Dynasty's economy, but the blind marching still angered the people who were already miserable and sad, which led to the Sui Dynasty's national strength becoming weaker and weaker, and the rebel forces everywhere were eager to move.
In 618, the emperor's close confidant Yu Wenhua and the great rebellion killed the Sui Emperor and successfully ascended the throne himself. So, as a former second-generation official palace security captain, why should he commit the following crimes?

1. The family of warriors
Starting from Yu Wenhua and Taizu Yuwen Tai, they are a family of warriors. Yu Wenhua's grandfather was the Shangzhu Guo of the Northern Zhou Dynasty, whose name was Yuwen Sheng, who had made great contributions to the Northern Zhou Dynasty and was a brave warrior. Subsequently, Yu Wenhua and his father Yuwen Shu took over his father's position and traversed the Northern Zhou battlefield. Later, Yuwen Shu vigorously helped Yang Guang, the King of Jin, to seize the throne and successfully entered the ranks of military generals of the Sui Dynasty.
When he arrived at Yu Wenhua and here, his father's military achievements had already paved the way for him, so Yi Shangang directly became the court security captain of the Sui Dynasty Emperor Yang Guang. Although the position is not the highest, it has a very high status. In addition to the prominent position in the family, Yu Wenhua began to be arrogant and arrogant, not paying any attention to others, and even often rode wildly on the main road of the capital. His mischievous disposition is evident.
Although Yu Wenhua and such deeds had violated the law, and although the imperial court had punished him several times for his crimes, the Sui Dynasty Emperor Yang Guangnian and the yuwen family's old feelings and Yu Wenhua's responsibility for guarding the palace for many years took the initiative to exempt Yu Wenhua and his punishment, and also reinstated him as an official.
In this way, in the face of the emperor's favoritism, Yu Wenhua and even more blind, and even knew that he could not contact the Turks, he also took advantage of the Sui Emperor's travels to do business with the Turks. After the incident, although the Sui Emperor severely punished him, it was used again shortly after. In Yu Wenhua and his heart, he had long believed that no matter what mistakes he committed, the emperor would turn a blind eye to him and re-favor him.
2. Conspiracy to rebel
In 616, the Sui Emperor traveled east. Unexpectedly, at this time, there were already rebels in various places, especially Li Mi of the Wagang Army, who directly blocked the sui emperor's return to the capital Chang'an. At this time, the Sui Emperor, who had no choice but to stay in Jiangdu. After a long time, since he could not return to Chang'an in the west, the Sui Emperor actually wanted to establish Nanjing as the new capital of the Sui Dynasty.
At that time, the soldiers responsible for guarding the Sui Emperor were all northwestern, and they were a little upset when they could not go home for a long time, and when they heard that they wanted to go east again, they were even more dissatisfied. At this time, Wu Benlang secretly joined forces with Yu Wenhua and his younger brother Yuwen Zhi to plot a rebellion, and also secretly elected Yu Wenhua and as the leader. At first, Yu Wenhua, who was in the dark, did not know what was going on, but when he learned of his brother's plan, he was also frightened into a cold sweat. However, Yu Wenhua was arrogant and arrogant, and had no reverence for the laws of the Sui Dynasty and the Sui Dynasty, and after a little thought, he directly agreed to his brother's rebellious request.
In March 618, Sima Dejie led the emperor's forbidden army directly into the palace and captured the Sui Emperor Yang Guang. Subsequently, Yu Wenhua ordered him to be killed, and cleaned up all sui dynasty close nobles in the palace, and also installed Yang Guang's nephew Yang Hao the Prince of Qin as the new puppet emperor.
3, helpless to take the position
After killing the Sui Emperor and establishing a new monarch, Yu Wenhua immediately decided to lead a large army back to the northwest capital to appease the return of many soldiers. By this time, however, there had been war everywhere, and rebel armies were blossoming everywhere. With the new Sui Emperor, Yu culture and nature became the target of everyone, and the road to the west became very difficult.
At the same time when the people were trapped and lacking, Sima Dejie, who had conspired to rebel, plotted a rebellion again, wanting to kill Yu Wenhua and replace him. However, Yu Culture and knew in advance and eliminated it. Later, Yu Wenhua and his large army were gradually depleted due to various events, and only more than 20,000 people remained.
At this time, seeing that there were hostile rebels everywhere around him, Yu Wenhua was already disheartened, and he desperately directly poisoned the puppet emperor, calling himself emperor, and the founding name was "Xu", ready to join the rebel army all over the country to divide his own power. Unfortunately, at this time, Yu Wenhua and his subordinates were all physically and mentally exhausted soldiers, with no combat effectiveness, and a city could not be defeated.
Seeing that Yu Culture was weak, other rebel armies around him also came to attack him. In desperation, Yu Wenhua had to hide in a small city. However, not long after, he was captured by another rebel leader, Dou Jiande, and beheaded along with his family. At this point, the culture and life of the first generation of superior and arrogant officials and the second generation of Yu came to an end, along with the continuation of the Yuwen family, which had made great achievements in battle, they were also buried in his hands.
Since the beginning, Yu Wenhua did not want to become emperor by usurpation, and although he was foolish, he did not have so much courage. His title of emperor, to put it bluntly, was completely cultivated by the Sui Emperor Yang Guang himself, and he was carried up by his brother alone. Come to think of it, if Yu Wenhua and can follow the fine martial tradition of their fathers, be cautious and cautious, and follow the law, although they will not be able to turn the tide, they should shine in the sui and Tang dynasties.
Unfortunately, he only ended up with such a tragic and lonely ending.
Image/from the Internet, intrusion and deletion.