Many emperors in history conspired to usurp the throne. For example, Zhao Kuangyin, Song Taizu. At that time, Zhao Kuangyin, wearing a yellow robe, forced Emperor Gong of the Zhou Dynasty to meditate, thus establishing the Northern Song Dynasty in history. Why didn't Zhao Kuangyin be accused by later generations of plotting to usurp the throne? Instead, Sima Yi's family usurped the throne, and almost everyone thought Sima Yi was a traitor. So, why is the reputation of Sima's family so bad?

This is mainly related to the process of Sima Jia's usurpation. After Cao Cao's death, Cao Fang, who succeeded to the throne, was only 8 years old. Although Cao Cao left two assistant ministers, one was Sima Yi and the other was Cao Shuang, but Sima Yi actually had more power. Later, he seized the opportunity and launched the change of Gao Pingling. As a result, Cao Shuang surrendered and Sima Yi took control of the state affairs.

Later, Sima Yi became the ruler of Cao Wei. After Sima Yi's death, Sima Shi inherited Sima Yi's title and became the real ruler. Sima Shi deposed Cao Fang and made thirteen-year-old Cao Mao emperor. At this time, the Sima family has occupied a dominant position. Later, Sima Shi died and Si Mazhao became emperor.

Later, Si Mazhao killed Cao Mao in the street. When the throne fell to xelloss, Sima Yan followed xelloss's example and also abdicated, thus establishing the Jin Dynasty. When Sima Yan became emperor, he passed the throne to his stupid son Sima Yan, which led to the rebellion of the Eight Kings.

Since then, the turbulent era has lasted for more than 400 years. More cruelly, the Sima family killed too many people in the process of usurping the throne. Sima abolished two emperors and killed one in the process of moving towards imperial power. Secondly, he killed many princes and ministers. Such a Sima family is bound to be criticized, so in the history books, the Sima family's reputation has always been bad.