Who is Cai's ancestor?

Cai surnamed Guo. 1 1 century BC, after the demise of Shang Dynasty, his brother Shu was sealed in Cai (southwest of Shangcai, Henan) and Cai was established. Together with his brother Guan Shu Xian and his brother Huo Shu, he supervised Wu Genglu, the son of Yin, who was sealed in the old capital of Shang Dynasty, and managed the adherents of Shang Dynasty, known as the "Three Supervisors" in history. After his death, the son Wang recited the succession, and his brother was the Regent. Guan Shu and Cai Shu were dissatisfied with this and rebelled with Wu Geng and the Oriental barbarians. After being suppressed, Wu Geng and Guan Shu were killed and Cai Shu was exiled. Soon, he died in the relocation. His son Hu can break with his father's rebellious behavior, abide by the moral teachings of King Wen and be kind to others. Because of Hu's outstanding achievements in Lu, Duke Zhou invited him to be king and restored Hu Yucai as the ancestor of Cai Shuhe. Its descendants take the country as their surname. The ancestor of each branch, Cai Shudu: the ancestor of Cai surname, Zhou Wuwang's brother Shudu, was sealed in Cai State. Because he thought it was his surname, all his descendants were scattered except Feng, and he was the most prosperous in Liang, known as Jiyang Cai in the world. Cai, the founder of Henan, is the father of all provinces. Cai Wenjie and Cai Xingzu: Cai Wenjie, ancestor: Cai Xingzu, moved from Jianyang, Fujian to the south of Dantu at the end of Yuan Dynasty. It's for the ancestors of Dantu Cai. Cai Donghui: His ancestral home is Taixing, and he moved to Danyang in the middle of Ming Dynasty. His descendants are scattered in Dantu, Wujin and Jiangyin. Is the ancestor of Jiangsu Cai.