Dong Yong is the male protagonist in the legendary story book Tian Xian Pei (天仙配). The story tells that a young man named Dong Yong in the Han Dynasty encountered a fairy from heaven and they married in the end. The fairy is indeed the seventh daughter in heaven, and the young man is but a poor scholar. She is moved by the young man’s filial piety and good character, and then comes down from heaven to help the man.

The legend of Dong Yong has been, during a long time of spanning over 2,000 years, continuously combined with people's life in various regions and has evolved to be legends of distinctive regional features. Accordingly, customs in this regard have been formed and relics have come into existence, such as cultural relics, steles and villages which are related to Dong Yong's life experience. For instance, there is Dongjia Village and Dong Yong grave in Boxing County, Shandong Province, a stele written with "Dong Yong's Native Place" and "Consensual marriage cloth" in Xiaohuai Village in Wanrong County, Shanxi Province, and ceremonious worship of the dutiful son in temple fairs held on the third day of the second lunar month and the tenth day of the eleventh lunar month annually in Wuzhi County, Henan Province. Historical and literary material contained in the legend of Dong Yong is valuable to the research on the society, economy, politics and culture, in particular on the literature and art of every dynasty of China.