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In page Chinese surname:

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After the Song dynasty, surname distributions in China largely settled down.[citation needed] The Kuàng (邝/鄺) family, for example, migrated from the northern capital and settled in Guangdong after the Song dynasty revolts.[citation needed] Villages are often made up of a single patrilineage with individuals having the same surname, often with a common male ancestor. They usually intermarry with others from nearby villages, creating genetic clusters.