Coverage: Henan, Hunan, Hubei, Sichuan, Fujian, Guangxi, Guangdong, Yunnan, Vietnam, Laos, Thailand, Southeast Asia countries
Su has two branches. According the records in the pedigree book of Su families, people of the first branch were offspring of Gaoyang. Kunwu, an eighth generation descendant of Gaoyang, was originally surnamed Ji. His descendants took surname Su, Gu, Wen and Dong, among which Su in Henan and Henei areas had the largest numbers of members. The second branch came out of ethnical minorities. The minority of Wuyuan in the East Liao area of the Han Dynasty and the minority of Balve in the Northern Wei Dynasty changed their surname to Su, as recorded.
Based on the records in the related history books and pedigree books, Su families used to live in Henei for generations. In the Pre-Qin Period ( 21st century - 221 B.C.), some of them moved to Hunan, Hubei while a few to Luoyang of Henan, including celebrities like Su Cong, minister of Kingdom Chu and the three brothers of Su Qin, Su Dai and Su Li in Luoyang in the Warring States Period. In the beginning years of the West Han Dynasty, some of them moved to Duling of Wugong and Pingling of Fufeng, both of which developing into big clans. Su families could also be found in Beihai, Guiyang and other places then. Some Su families of Wugong moved to Xiangyang and Lantian in the end of the Western Jin Dynasty. Some descendants of the Su families of Fufeng got official posts in Handan, later they settled down there and developed into the Su families of Zhaojun. When aristocrats of the central plain moved to the south in large scale in the Eastern Jin Dynasty, some Su families followed them and passed the Yangtze River to settle down in Jiangsu and Zhejiang areas. In the Tang Dynasty, some Su families of Zhaojun moved to Sichuan while those of Henan moved twice to Fujian, following General Chen Zheng to Zhangzhou of Fujian in the beginning years of the Tang Dynasty and General Wang Chao to Chen’an of Fujian at the end of the Tang Dynasty, developing into large clans. Su families moving to Xinhua and Anhua areas of Hunan were called Meishan Barbarians and were cracked down in the Northern Song Dynasty. Survivors escaped to Guangxi, Guangdong, Yunnan or even to Vietnam, Laos and Thailand. Later, some Su families moved to the Southeast Asia countries as well as the Europe and the America.
Su Qin, born in Luoyang, was a famous elocutionist in the Eastern Zhou Dynasty (770 - 256 B.C.). He played a very important role at the historical stage of the 3rd century B.C. He devoted his life to frequent foreign affairs for a stronger kingdom of Yan, preparing for its war against Kingdom Qi. He also greatly influenced the policies and strategies of other kingdoms like Qi, Zhao, and Wei. With integrated theories of various schools, he tried his best to persuade kings of different states by planning carefully, catering swiftly and talking skillfully, thus being regarded as the representative figure of the “zonghengjia”, the eloquent specialists who influenced the policies and strategies much by persuading the kings.