I was the ninth Parthian king, the grandson of Phriapatius . His father's name has not come down through history, but he was not a king. See the genealogy chart .
Recent research shows the type likely does belong to Sinatruces.
See the article on Recent Research on Attributions to Sinatruces by Dr. G. R. Assar. Behind head is countermark in form of full frontal face. The crude style of both the obverse and reverse of this example are in line with the engraving traits of the mints to the far east of the Parthian empire. Unfortunately, the inscription on the left side is either very weakly struck or partially obliterated by countermarking and thus remains almost illegible. These coins were likely minted by Sinatruces to pay the Saka mercenaries who helped him gain the Parthian throne.