Mithridates IV, grandfather of Mithridates VI Eupator
Mithridates VI Eupator
Answer
Mithridatism is a method of suicide by self-poisoning, using a concoction of toxins. It is named after Mithridates VI Eupator, a King of Pontus who is said to have developed a tolerance to poisons.
Magnificent Mithridates: Unveiling the Legendary King of Pontus