Question: What nationality is Arcathias's father?
Sentence (from "Mithridates VI of Pontus"): Mithridates VI or Mithradates VI (or ; , from Old Persian "Miθradātagift of Mithra") (135–63 BC), also known as Mithradates the Great (Megas) and Eupator Dionysius, was king of Pontus and Armenia Minor in northern Anatolia from about 120–63 BC.
Relevant evidence: No