It can be said that Wei Guan was the final winner of Cao Wei's attack on Shu in 263 AD, which laid a solid foundation for the establishment of the Western Jin Dynasty. However, he died at the hands of a woman, as follows.
Incident
After the destruction of Shu, Wei Guan was given the title of Hou Yang, wife and son. At this time, Cao Wei existed in name only, and Sima family "Wei in Jin Dynasty" was put on the agenda. In August of the second year of Emperor Xianxi (265), Si Mazhao died of illness. His son Sima Yan forced Cao Huan, the Emperor of Wei Yuan, to abdicate, and he proclaimed himself emperor, with the title of Jin, which was called the Western Jin in history. At this time, Wei Guan was trusted by the Emperor Wu of Jin Dynasty, and he was promoted to the rank of Zhu Yang Gong. Since then, Wei Guan has served as the commander-in-chief of Qingzhou's military, and concurrently served as Qingzhou secretariat, general of Zhengdong, and Qingzhou animal husbandry.
In the third year of Taikang (282), Wei Guan was promoted to Sikong, and was praised by the government and people in the Western Jin Dynasty for his simplicity. Wei Xuan, the fourth son of Wei Guan, also married Princess Fanchang, the daughter of Emperor Wu of Jin Dynasty, and he was more trusted by Emperor Wu of Jin Dynasty. At this time, Wei Guan, a very important minister, was jealous of his consort Yang Jun.. Yang Jun, together with Huang Men and others, vilified Wei Xuan, saying that Wei Xuan was addicted to debauchery and urged Wu Di to issue a letter to divorce them. Wei Guan felt a great responsibility, sorry for the emperor's trust, and deeply remorse, so he asked to retire. In this way, Yang Jun is still not satisfied. He wants to arrest Wei Xuan and hand him over to Ting Wei for punishment. He also wants to recall Wei Guan, but he is rejected by Wei Wudi. Later, when it came to light, Emperor Wu of Jin knew that Wei Xuan had been framed by the Yellow Gate and wanted to reunite the princess with Wei Xuan. However, Wei Xuan had died of illness at this time.
In the first year of Yongping (290), Sima Yan, Emperor Wu of Jin Dynasty, died, and Prince Sima Zhong acceded to the throne, and Yang Jun, a teacher, assisted the government. At this time, the queen was Jia Nanfeng, a "strong woman". In order to seize power, she combined with Sima Wei, the king of Chu, to punish Yang Jun, but the power fell to Wei Guan, the emperor's teacher, and Sima Liang, the king of Runa. Wei Guan was given the honor of "going to the temple with a sword, but not going to the court", which played an important role in the court of the Western Jin Dynasty.
Jia Nanfeng was very dissatisfied when he saw that he didn't achieve the goal of autocracy, and he was restricted by the upright and upright Wei Guan everywhere. She thinks day and night about how to get rid of Wei Guan and master the court in the Western Jin Dynasty. At this time, Jia Nanfeng sent a letter to Sima Wei to arrest Wei Guan on charges of "plotting to abolish legislation". Sima Weiyu sent Sima Xia, the king of Qinghe River, to surround Weifang, killing Wei Guan and nine of his descendants. Only Wei Heng's two sons, Wei Yun and Wei Jie, were outside, and escaped. Records in the Book of Jin are as follows:
When he refused to obey, he was killed with nine people, including Zi Heng, Yue, Yi and Sun, at the age of 72. Heng Er Zi Zan, Zan, was exempted from doctors.
Then, as an important official in the court and a founding father of the Western Jin Dynasty, why was Wei Guan killed? Personally, I think there are three reasons.
First, Wei Guan's integrity has offended many people.
Wei Guan, as a commonplace, once rebuked Du Ronghui for making mistakes, so he offended this little man. When Sima Xia, the king of Qinghe, arrested Wei Guan, Rong Hui published a personal vendetta, pointing out the names of Wei Guan's family one by one and killing nine people. Wei Guan reprimanded Rong Hui, but it should not be because of personal grievances. He certainly did not do well and made a mistake. Wei Guan, on the other hand, enforced the law impartially, but suffered injustice.
Second, Wei Guan blocked Jia Nanfeng and others from taking power.
After getting rid of Yang Jun, a teacher, the court in the Western Jin Dynasty was faced with the question of who would take power. Jia Nanfeng dreamed of "the mother instrument is the world", but Wei Guan, a veteran, stood up and helped Sima Liang, the king of Runa, to clean up the mess. Whoever stands in Jia Nanfeng's way is her mortal enemy. Therefore, she regards Wei Guan as a thorn in her side and a thorn in her flesh. Jia Nanfeng joined forces with Sima Wei to get rid of Wei Guan and Sima Liang, and Sima Wei was removed by Jia Nanfeng. In the end, Jia Nanfeng got rid of all obstacles and really mastered the power of the Western Jin Dynasty.
Third, Wei Guan had indirectly persuaded Sima Yan, Emperor Wu of Jin Dynasty, to replace Prince Sima Zhong and offended Jia Nanfeng.
We know that Sima Zhong, the prince of Emperor Wu of Jin Dynasty, is a person with "low IQ". Although he is not a pure fool, he is also worse than normal people. Wei Guan, as a teacher of the Prince, knew this and worried about the future of the Western Jin Dynasty. On one occasion, Wei Guan alluded to Sima Zhong through drunkenness, and indirectly expressed to Emperor Wu that Sima Zhong was not fit to be a prince. Jia Nanfeng, the Crown Princess, learned about this incident and hated Wei Guan very much. She is the concubine of Prince Sima Zhong. When Sima Zhong succeeds to the throne in the future, she is the queen and can hold power. If the position of Prince Sima Zhong is abolished, her dream of "mother instrument is the best in the world" will be ruined, which is unacceptable to her. Therefore, Jia Nanfeng is very disgusted with Wei Guan and wants to get rid of it.
Wei Guan was an important official of Cao Wei, but he was a close confidant of Jin Gong Si Mazhao. As a supervisor, he and Wargo and Zhong Hui attacked Shu, and got rid of Wargo, Zhong Hui and Jiang Wei, and enjoyed the work of destroying Shu exclusively. Later, Sima Yan, the son of Si Mazhao, established the Western Jin Dynasty, and Wei Guan became the founding hero of the Western Jin Dynasty. If he made a name for himself during the reign of Emperor Wudi of Jin Dynasty and retired in time, he would probably die a natural death. However, he was reluctant to stay in power. After getting rid of Yang Jun, a teacher, he came to power with Sima Liang, assisted in state affairs, was jealous by Jia Nanfeng and others, and was finally killed, leaving his last days in jeopardy.