Duan Yu (1083–1176), courtesy name Heyu, also known by his temple name as the Emperor Xianzong of Dali, was the 16th[1] emperor of the Dali Kingdom, reigning between 1108 and 1147. Following a family tradition, Duan's father, Duan Zhengchun, abdicated and became a monk in 1108. Duan succeeded his father as the emperor of Dali and renamed himself Duan Zhengyan (段正嚴). He abdicated and became a monk in 1147 and was succeeded by his son Duan Zhengxing.
In fiction
Duan Yu is fictionalized as one of the main characters in the wuxia novel Demi-Gods and Semi-Devils by Louis Cha.
- Portrayed in Demi-Gods and Semi-Devils by Kent Tong (1982)
- Portrayed in Demi-Gods and Semi-Devils by Eddie Kwan (1991)
- Portrayed in Demi-Gods and Semi-Devils by Benny Chan (1997)
- Portrayed in Demi-Gods and Semi-Devils by Jimmy Lin (2003)
- Portrayed in Demi-Gods and Semi-Devils by Kim Ki-bum (2013)
- Portrayed in Demi-Gods and Semi-Devils by Bai Shu (2021)