Mithridates or Mithradates (Greek, Modern (1453-);: Μιθριδάτης or Μιθραδάτης) was a Persian noble. His wife was the daughter of Darius III with the sister of Pharnaces, which made him the son-in-law of Darius.[1] [2] He was slain by the hand of Alexander the Great himself, at the Battle of the Granicus (modern-day Turkey) in 334 BC, when Alexander plunged his lance through Mithridates' face.[1]