Full name
Family name: Sima (司馬; sī mǎ) Given name: Zhong (衷, zhōng) Titles 267–290: Crown Prince 太子 290–301: Emperor 301–301: Retired Emperor 301–307: Emperor
Posthumous name
Full: Xiaohui (孝惠, xiào huì) literary meaning: "filial and benevolent" Short: Hui (惠, huì) "benevolent"

Father

Emperor Wu of Jin

Mother

Yang Yan, Empress Wuyuan

Full name
Family name: Sima (司馬; sī mǎ) Given name: Zhong (衷, zhōng) Titles 267–290: Crown Prince 太子 290–301: Emperor 301–301: Retired Emperor 301–307: Emperor
Posthumous name
Full: Xiaohui (孝惠, xiào huì) literary meaning: "filial and benevolent" Short: Hui (惠, huì) "benevolent"

This article is part of the War of the Eight Princes series.

Eight Princes
Sima Liang
Sima Wei
Sima Lun
Sima Jiong
Sima Ai
Sima Ying
Sima Yong
Sima Yue
Other key figures
Emperor Hui
Emperor Huai
Empress Yang Zhi
Jia Nanfeng
Yang Xianrong
Sima Yu
Yang Jun
Wei Guan
Zhang Hua

Emperor Hui of Jin (simplified Chinese: 晋惠帝; traditional Chinese: 晉惠帝; pinyin: Jìn Huì Dì; Wade–Giles: Chin Hui-ti; 259 - January 8, 307), personal name Sima Zhong (司馬衷), courtesy name Zhengdu (正度), was the second emperor of the Jin Dynasty (265-420). Emperor Hui was a developmentally disabled ruler, and throughout his reign, there was constant internecine fighting between regents, imperial princes (his uncles and cousins), and his wife Empress Jia Nanfeng for the right to control him (and therefore the imperial administration), causing great suffering for the people and greatly undermining the stability of the Jin regime, eventually leading to Wu Hu rebellions that led to Jin's loss of northern and central China and the establishment of the competing Sixteen Kingdoms. He was briefly deposed by his granduncle Sima Lun, who usurped the throne himself, in 301, but later that year was restored to the throne and continued to be the emperor until 307, when he was poisoned, likely by the regent Sima Yue.

Sima Zhong was born to Sima Yan and his wife Yang Yan in 259, while Sima Yan was still the assistant to his father, the Cao Wei regent Sima Zhao. He was their second son, but as his older brother Sima Gui (司馬軌) died early, he became the oldest surviving son. It is not known when it became apparent that he was developmentally disabled, but in any case, after Sima Zhao died in 265 and Sima Yan subsequently forced the Cao Wei emperor Cao Huan to abdicate to him, ending Cao Wei and starting Jin (as Emperor Wu), he created Prince Zhong crown prince in 267, at age seven.

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Wikipedia