Emperor Wu of Jin
Emperor of the Jin Dynasty from 266 to 290
Emperor Wu of Jin (Chinese: 晉武帝; 236 - 290) was the founder of Western Jin Dynasty. His name was Sima Yan. He was born in Henei (now Henan Province). His father was Sima Zhao and Sima Yi was his grandfather. They were the imperial officials of Wei Dynasty and seized control over the imperial court. In 265 AD, Sima Yan forced Emperor Cao Huan to abdicate. In 280 AD, he conquered Eastern Wu and unified China.
Later he promoted his relatives as princes, it caused War of the Eight Princes after Sima Yan’s death.