Cao Rui (Prince of Beihai)


Cao Rui was a prince in the state of Cao Wei in the Three Kingdoms period of China. He was a son of Cao Pi, the first emperor of Wei. His mother, whose family name was Pan, was a concubine of Cao Pi holding the rank of shuyuan. He was enfeoffed as the Prince of Yangping County in 226 after his half-brother, Cao Rui, succeeded their father as the emperor of Wei. In 232, his title was changed to Prince of Beihai. He died in 233.
In 234, Cao Rui designated Cao Zan, a descendant of Cao Ju, as Cao Rui's heir and enfeoffed him as the Duke of Chang District. In 238, Cao Zan was promoted to Prince of Rao'an. In 246, during the reign of Cao Fang, Cao Zan's title was changed to Prince of Wen'an. Throughout the reigns of the subsequent Wei emperors, the number of taxable households in Cao Zan's princedom increased until it reached 3,500.