The head of Suren family had the privilege to crown the first Parthian king in the 3rd century BC, which founded a tradition that was continued by his descendants.[4][3][a] Following the 3rd century AD defeat of the Arsacids and the subsequent rise of the Sassanids, the Surenas then switched sides and began to serve the Sassanids,[5][6] at whose court they were identified as one of the so-called "Parthian clans." The last attested scion of the family was a military commander active in northern China during the 9th century.[7]
It is probable[5] that the Surenas were landowners in Sakastan, that is, in the region between Arachosia and Drangiana in present-day southeast Iran and Southern Afghanistan. The Surenas appear to have governed Sistan (which derives its name from 'Sakastan' and was once a much larger region than the present day province) as their personal fiefdom.[5]
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