dec 31, 117 - Osroes I Becomes Shah of Parthia
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Osroes I was a Parthian contender, who ruled the western portion of the Parthian Empire from 109 to 129, with a brief interruption from 116 to 117. For the whole of his reign he contended with the rival king Vologases III (r. 110–147) based in the eastern parts.
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