Cai Yong (A.D. 133 to A.D. 192), a native of Pixian County (now Chenliu Town, Kaifeng City, Henan Province), was a famous minister, writer and calligrapher in the Eastern Han Dynasty.
Cai Yong has two daughters. The eldest daughter is Cai Wenji, the author of Eighteen Beats of Hu Jia. The name of the youngest daughter is unknown. When she married Cao Wei of the Three Kingdoms, she joined the Party to guard the sheep and gave birth to the famous sheep withered in the last years of the Three Kingdoms.