Chinese: from the place name Su. A
descendant of the emperor Zhuan Xu, who lived in the 26th century
bc, was granted a fiefdom called Su, and his descendants
eventually adopted the place name as their surname.
Chinese: from part of an official title, Zhisu Duwei, of the
Western Han dynasty (206 bc–24 ad). This title was
borne by the official in charge of granaries, an important role as
granaries could be strategic military targets. A descendant of one
such official adopted the character Su from the title as his surname.
Chinese: from the name of an ancient kingdom
called Su, which existed during the reign of the first of the three
legendary emperors, Fu Xi (2852–2734 bc).
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