Jin Feidi, emperor of the Jin Dynasty (b. 342)
Emperor Fei of Jin (simplified Chinese: 晋废帝; traditional Chinese: 晉廢帝; pinyin: Jìn Fèi Dì; Wade–Giles: Chin Fei-ti; 342 – November 23, 386), personal name Sima Yi (司馬奕), courtesy name Yanling (延齡), was an emperor of the Eastern Jin Dynasty (266–420) in China. He was the younger brother (from the same mother) of Emperor Ai and later deposed by military leader Huan Wen. The title that he is normally referred to, "Emperor Fei", is not a posthumous name as is usually the case with imperial common titles, but rather signified that he was deposed (with "Fei" (廢) meaning "depose"). He is also commonly known by the title he was given after his removal, Duke of Haixi (海西公).