Cao Tang was a political commentator in the Three Kingdoms period. Imperial clan of Cao Wei. Pei Guoqiao County (Bozhou, Anhui). The word Fuhrer. Cao Cao is a cousin (or nephew). Cao Fang, the ancestor of Wei Shaodi. Cao Tong's father is Cao Cao's half-brother, and Cao Tong's great-grandfather Cao Shuxing is Cao Teng's brother. He lived from the middle period of Jian 'an in the late Han Dynasty to the last years of Emperor Wei Yuan (about 207-264). Have literary talent. I felt that Cao Wei's regime did not reuse imperial clan, and it was in danger of being excluded by foreign surnames, so I wrote the Six Dynasties Theory. With regard to the rise and fall of Xia, Shang, Zhou, Qin, Han and Wei Dynasties, it is suggested that the imperial clan children should be enfeoffed and given real power in military affairs, so as to restrain ministers with different surnames, strengthen the weak branches and consolidate the rule of Cao Wei. At that time, Cao Fang, the Wei Emperor, was young, and Cao Tong presented it to Cao Shuang, the ruling general, in November of the fourth year of Wei Zheng, hoping to understand Cao Shuang with this theory. But Cao Shuang failed to adopt it. Cao Guan is the prefect of Hongnong. His theory of six generations still exists in Selected Works. Cao Jie (character Wei) Cao Quan/Zan? Cao Chi, Coss, Cao Tai, Cao Chu, Cao Chun, Cao Liang, Cao Zhongxing, Cao Shuxing, Cao Jixing, Cao Song (suspected of praise), Cao Pi, Cao Suao, Cao Fang and Cao Song are actually Cao Jiazi. Because Cao Zhi married Xiahou's family, he was slandered as Xiahou Zi insulting Cao Cao and Cao Pi.

Cao Fang was abolished as Cao Cao's parent-child, and Sima Shi rumored that he was not the son of Ming Di.