Format of naming convention in English is under discussion at Wikipedia talk:Naming conventions (Chinese) and Wikipedia talk:Naming conventions (Chinese)/monarchical titles.
Emperor Jianwen of Jin China (晋简文帝, 晉簡文帝, Pinyin Jìn Jiǎnwéndì, Wade-Giles Chin Chien-wen-ti) (319 or 320-September 12, 372) was an emperor of the Eastern Jin Dynasty (265-420) in China. He was the younger brother of Emperor Ming and installed by military leader Huan Wen.
Emperor Ai was succeeded by his brother Sima Yi the Prince of Langye, who took the throne as Emperor Fei.
He decided to depose Emperor Fei, and he spread false rumors that Emperor Fei was impotent and that his sons were actually sons of men that he favored (implying a homosexual relationship between him and those men).
EmperorJianwen soon died, and was succeeded by his 10-year-old son Sima Yao, whom he created crown prince right before his death.