Mithradates VI (Greek: Μιθριδάτης), from Old Persian Mithradatha, "gift of Mithra"; b. 134, d. 63 BC, also known as Mithradates the Great (Megas) and Eupator Dionysius ...
Mithridates VI Eupator the Great (c. 120–60 BC) King of Pontus (on the Black Sea coast of modern Turkey), who became the greatest obstacle to Roman expansion in the east.