Cao Mao
Cao Lin had two sons: Cao Qi (曹啟) and Cao Mao (曹髦). The elder one, Cao Qi, inherited his princedom and became the next Prince of Donghai. Over the reigns of the subsequent Wei emperors, the number of taxable households in the Donghai princedom increased until it reached 6,200. Cao Lin's younger son, Cao Mao, initially held the title "Duke of Gaogui District" (高貴鄉公). In 254, following Cao Fang's death, Empress Dowager Guo selected Cao Mao to be the fourth emperor of Wei. In accordance with imperial customs, Cao Mao was adopted as a posthumous son of Cao Rui so that his succession would be considered legitimate.