"Parthamaspates was a Parthian prince who ruled as a Roman client king in Mesopotamia, and later of Osroene during the early second century AD. He was the son of the Parthian emperor Osroes I." - (en.wikipedia.org 07.10.2020)
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(The left column lists the relations of this actor to objects in the right column. In the middle you find other actors in relation to the same objects.)