Where did Cai's ancestral home come from in Shantou City, Guangdong Province?

Cai family in Chaoshan. In Fujian, Taiwan and Chaoshan, there is a proverb called "Chen is half the world". Of course, the total population of the Cai family in Chaoshan is far less than that in Chen and other places, but we can also see that the Cai family in Fujian, Guangdong and Taiwan has an unusual blood relationship. According to data research, most of the Chua's families who live in Chaoshan moved from Fujian, while the Chua's family in Fujian moved from Henan. There are two mainstream schools of Cai family in Fujian, one is Putian School and the other is Jianyang School. Cai Yongyuan is the ancestor of Putian people in Fujian. According to Putian Spectrum, "Because of the rebellion of Ganfu, my family left Gushi County, Gwangju and Huaixi West Road, and went from Wang to Fujian to Quanzhou. After the king was the king of Fujian, he moved (used yuan) to live in Putian, so he was the ancestor of Putian. " Cai Lu, the ancestor of Jianyang, was also a native of Gushi, Gwangju (Cai Xia in Gushi Spring and Autumn Period). Ganning four years (987), Ren Jianyang county magistrate. He and his brother-in-law and ambassador Weng Yue led the 53 surname of Gushi in Gwangju to settle in Fujian, and Jianyang was the ancestor of Cai. After that, the Chua family entered two branches of Fujian, spread to all parts of Fujian, and developed to Guangdong and Taiwan Province provinces. The Cai family in Chaoshan is mostly Putian. There are also some Jianyang ancestors who are Cai Lu, such as Cai Yongyuan who spread to Cai Xiang and Xiang to the seventh generation, and Cai Panxi Cai Guifu, who was an official at the end of the Southern Song Dynasty, who was first a judge and then a state governor. Cai Guifu did not return to his hometown in Putian after leaving office and settled in Wang Bi Haiyang. Up to now, all his descendants have moved to Chaoshan. Another part of Chaoshan, the Chua family, moved in from Zhangpu, Fujian. Their lineage is close to that of Cai Xin, a great scholar in Qianlong period of Qing Dynasty, but if traced back, they still belong to Putian family.