Mithridates VI or Mithradates VI (; Greek: Μιθραδάτης, Μιθριδάτης), from Old Persian Miθradāta, "gift 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 (now Turkey) from about 120–63 BC.