Who was born in a rich family in Xiangyang, helped Liu Biao enter Jingzhou and became friends with Cao Cao?

This man is Cai Mao, whose family is a giant in Xiangyang. Liu Biao entered Jingzhou, thanks to the support of Cai Mao and other giants, Liu Biao was able to sit firmly in Jingzhou. And Cai Mao, because of his generous personality since childhood, has made many friends in the Jianghu, and Cao Cao is one of them. So after Cao Cao captured Jingzhou, Cai Mao surrendered to Cao Cao and trained the water army for Cao Cao, which once gave Zhou Yu a headache. But Zhou Yu's ingenuity was superior, and Cai Mao was killed.

Let's start with Cai Mao. His father is Cai Yan. In his father's time, Chua's family was already a noble family and a rich man in Xiangyang, so many people fawned on him. Cai sarcastically has two daughters. The eldest daughter married Huang and Zhuge Liang, and the youngest daughter married Liu Biao, so Cai Mao is Liu Biao's brother-in-law. So Liu Biao entered Xiangyang, and Cai Mao supported Liu Biao, making Liu Biao successfully secure Jingzhou.

And why did Cai Mao surrender to Cao Cao later? There are two reasons for this. First, Cai Mao and Cao Cao were close friends when they were young. The most important reason was that Cai Mao was a supporter of Liu Biao's youngest son, Liu Cong. So after Liu Cong surrendered to Cao Cao, Cai Mao returned to Cao Cao's command. This is described in the Romance of the Three Kingdoms. Cai Mao is a villain, and he has always been ashamed.

Liu Biao also has an eldest son named Liu Qi. Originally, Liu Biao was in a daze, and Jingzhou's successor may be the wise Liu Qi. But Liu Biao's wife is the niece of Liu Biao's wife, Chua's. Cai Mao naturally stood on Liu Biao's side, and also contacted some people to entrap Liu Biao's eldest son, Liu Qi, and pushed Liu Qi out of the power center of Jingzhou, so Liu Cong later became the master of Jingzhou. Cai Mao, on the other hand, was really disgusting, but he was later killed, which was one of the retribution of the wicked.