Mithridates or Mithradates VI Eupator (The spelling "Mithridates" was the Roman Latin version, but "Mithradates", the spelling used in Greek inscriptions and Mithridates' own coins, is regaining precedence, see e.g. Oxford Classical Dictionary, 3d ed. 135–63 BC) was the ruler of the Kingdom of Pontus in northern Anatolia from 120 to 63 BC, and one of the Roman Republic's most formidable and determined opponents.

Antiochus V Eupator, whose epithet means "of a good father" was a ruler of the Seleucid Empire who reigned from late 164 to 161 BC (based on dates from 1 Maccabees 6:16 and 7:1).Confraternity of Christian Doctrine, Inc., footnotes b and c at in the New American Bible (Revised Edition), accessed 18 December 2020