Who will be the grandson of Cao Ren's daughter in the Three Kingdoms?

Cao Ren's three sons: Cao Tai, Cao Kai and Cao Fan.

Coss' eldest daughter was betrothed to Sun Quan's fourth brother, Sun Kuang, and gave birth to a son, Tai. Other unknowns

In 223 AD, in the fourth year of Huang Chu, Wei Wendi, Coss died of illness. At the age of 56, he was called loyal. Cao Taisi's son, Cao Taisi, was appointed as the general of Town East, and was transferred to Ninglinghou during the holiday. After Cao Tai died, Cao Chu succeeded to the throne. Cao Taidi, Cao Kai and Cao Fan were also enfeoffed, and they were all named as liehou, while Jin Niu was the post-general.