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In page Iranians in China:

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In 731 a Han Chinese called Tang Rong 唐榮 from the capital district bought an 11 year old slave girl Shimaner 失滿兒 from Mi Lushan 米祿山, a Sogdian recorded in a contract written in Chinese.[34] There was a translator in Xizhou, Di Nanipan who had a Sogdian name but a non-Sogdian surname. Either he was not a Sogdian and was given the name because Sogdian language was prevalent or only his mother was Sogdian was his father was Han.[citation needed]