Cao Mao [SEP] father
Mao was a son of Cao Lin, the Prince of Donghai (東海王) and a son of Cao Pi. In 244, at the age of three, in accordance with Wei's regulations that the sons of princes (other than the first-born son of the prince's wife, customarily designated as the prince's heir) were to be instated as dukes, Cao Mao was enfeoffed as the "Duke of Gaogui District" (高貴鄉公). Cao Lin died in 249 when Cao Mao was eight. Cao Mao
. When Cao Rui became aware that the aristocratic families looked down at his father-in-law, he promoted Mao Jia further and ordered all important officials to attend feasts at the Mao residence.
However, as the years went by, Empress Mao began to lose Cao Rui's favour. By 237, Consort Guo had replaced her as Cao Rui's favourite. Once, when Cao Rui was attending a feast hosted by Consort Guo, Consort Guo requested that Empress Mao be invited to join as well, but Cao