I didn't mention Gou Jian, but when I narrated the history, I started with the Guyue nationality. Gou Jian's Yue State belongs to Yue Yue, a branch of Baiyue, while the main part of Yue State belongs to Max Loehr, and its descendants include today's Yue (Jing) and Mang. Although they belong to Baiyue, they are different from Yuyue, so they are far apart and have little contact in history. Baiyue should have originated in the Beibu Gulf, which is today's Guangdong, Guangxi and Vietnam, and then gradually migrated northward, spreading all over South China, and some even reached the northeast and the Japanese archipelago. Vietnamese history books say that Long Jun, the ancestor of Vietnam, is the ancestor of Baiyue. Now it seems to be in line with the facts. Because Vietnam is the birthplace of the Yue nationality, with the largest population and the strongest lineage, it is very independent. In the process of long-term rule by China, it was not assimilated by the Han people like Jiangsu, Zhejiang and Guangdong, and finally became independent, calling itself a great country in Yue. According to the Vietnamese ancient book "A Brief History of Yue State, Volume 1, Evolution of the Early Republic of China", during the Spring and Autumn Period of China, "Gou Jian, the King of Yue, wanted to send an envoy to, but the King of Yue refused." In other words, Gou Jian, the King of Yue, intended to win over the monarch Hong Ponzi, but was rejected. According to these data, Gou Jian, the King of Yue in China's letter history, and Pang Hong's family in Vietnamese legend are in a state of disunity.