Sima Shi - Career Up To 251

Career Up To 251

It is not known when Sima Shi was born, but it is known that he was Sima Yi's oldest son, born of Sima Yi's wife, Lady Zhang Chunhua (張春華). When he was young, he was known for the elegance in his conduct and his intelligence. As his father was an important Wei official, Sima Shi himself climbed up the ranks of officials fairly rapidly.

When Sima Yi planned a coup d'état against Cao Shuang in late 248; according to Jin Shu, Sima Yi confided only in Sima Shi, with even his younger brother Sima Zhao excluded from the discussion (although Sima Guang found this unlikely and, in his Zizhi Tongjian, opined that Sima Yi planned the coup with both Sima Shi and Sima Zhao). Sima Shi put together a group of 3,000 loyal men without knowledge by Cao Shuang or his associates, and when Sima Yi set to carry out his plans in 249, Sima Shi was able to quickly summon the men to carry out the coup.

Once Sima Yi overthrew Cao Shuang and replaced Cao as regent for the emperor Cao Fang, he rewarded his son with the title the Marquess of Changpingxiang. Sima Shi became his father's assistant, although there was no particular record of his accomplishments during these years. After Sima Yi died in 251, he took over his father's positions without significant opposition—after his father had, earlier that year, suppressed a failed rebellion by Wang Ling (王淩) and massacred the clans of Wang and his associates.