Sima Fu
Sima Wang was the second son of Sima Fu but he was adopted by his uncle Sima Lang, who had no son to succeed him; Sima Wang was therefore officially Sima Lang's heir. He started his official career in the state of Cao Wei during the Three Kingdoms period and served in various positions, including Administrator () of Pingyang Commandery () and Agriculture General of the Household of Luoyang (). In 251, he accompanied his uncle Sima Yi on a campaign against Wang Ling, who started a rebellion. After the rebellion was suppressed, the Wei government enfeoffed him as the Marquis of Yong'an Village () to honour him for his contributions. Later, Sima Wang was promoted to a district marquis under the title "Marquis of Anle District" () and given greater responsibilities as General Who Protects the Army () and Regular Mounted Attendant ().