There are three sources of Jiang's surname: 1, which comes from Won's surname. Legend has it that Jiang is a descendant of the great Yu sage Boyi. According to the Compilation of Yuanhe Surnames written in the Tang Dynasty, "Won surname, after Zhuan Xu Sun Boyi, was sealed in the river and later destroyed by Chu, taking the country as the surname." Zhuan Xu, named after the ancient emperor, is one of the five emperors and is said to be the grandson of the Yellow Emperor. Boyi, the great-grandson of Zhuan Xu, was the leader of Dongyi tribe in Shun Dynasty. Because he helped Yu control water, Yu had to give way to him, and he took refuge in the north of Jishan (Jishan is located in the southeast of Dengfeng County, Henan Province). The descendants of Boyi were sealed in Shang Dynasty or early Western Zhou Dynasty, and Jiang Guo was established. According to research, the capital of Gujiang Prefecture is located near Zhengyang County, Henan Province. During the Spring and Autumn Period, Jiang Guo was between the forces of Chu, Song and Qi, and was often manipulated by these great powers. In addition, the Huaihe River flooded the center of Jiang Guo, so Jiang Guo never became strong, and was finally destroyed by the State of Chu. After Jiang Guo's death, his descendants lived in various places, "taking the country as their surname", and Jiang's surname was passed down from generation to generation. It can be seen that the Chiang family is a descendant of Boyi, whose ancestor Boyi was yuanshi county, so the Chiang family originated in yuanshi county. 2, from Ji surname, divided by Weng. In the early years of the Western Zhou Dynasty, the descendants of Wang Zhao Hungzhi were sealed in Wengshan (now in the east of Dinghai County, Zhejiang Province, and in the east of wengyuan county, Guangdong Province), and later took the city name "Weng" as their surname. Weng, a native of Quanzhou, Fujian Province in the early Song Dynasty, had six sons, namely Hong, Jiang, Weng, Fang, Gong and Wang. Among them, the second son is Gong, surnamed Jiang, and the descendants are also Jiang. 3. Another surname of Jiang is Xiao. In the Tang Dynasty, Xiao was angry at being defeated by Huang Chao, and his descendants mainly lived in Jiangwan, Wuyuan, Jiangxi. The change of Jiang's surname originated in Zhengyang, Henan, so it mainly developed and multiplied in Henan in the early days. After the national subjugation, Jiang's descendants fled from Zhengyang to Huaiyang (now Henan), and then moved to Kaocheng, Jiyang (now Lankao, Henan), where they developed into famous families, so Jiang took "Jiyang" and "Huaiyang" as county names. According to records, after Jiang Guo's death, some descendants of Jiang Guo fled to Qi State (now Linzi, Shandong Province). Since then, after establishing a foothold in Henan and Shandong, Jiang has spread and developed around the country. In the early Tang Dynasty, people surnamed Jiang moved to Fujian and settled down. In Song Dynasty, Jiang moved to Zhejiang, Jiangxi, Fujian, Guangdong and other places on a large scale. During the Ming and Qing Dynasties, some Jiang clan members followed them into Taiwan Province and settled in Taiwan Province. Later, some Jiang clan members emigrated overseas.

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