Surname Overview
Ethnic Distribution
In the contemporary sample, Si users are mainly Han and Mongolian, with Manchu and Tibetan users also represented.
Si Surname
Population reference (not a current census): 58,688Si / Ssu
Origins
Three Origins
The surname Si has three origins: one branch descends from the Si tribal group among the southwestern Yi of Shu, one originated from the Shanyue people, and the Dongyang Si branch was originally the Shi surname and changed to Si after suffering a calamity during the Wu period of the Three Kingdoms.
Migration and Distribution
Historical and Present Distribution
During the Ming dynasty, the Si surname was mainly distributed in Zhejiang and Sichuan. In the contemporary sample, Si users' native-place regions are mainly Zhejiang, Inner Mongolia, Sichuan, and Xinjiang.
Genealogy and Generation Names
Families and Genetic Markers
The family database contains four Si families, including the Dongyang Si family of Jinhua, Zhejiang. The researched notable Si families include the Sichuan Si family and the Yiwu Si family of Zhejiang. Common genetic markers associated with the Si surname include O-F838, C-MF3343, and C-F8536.
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Surname attestation references
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