
Last king of Bithynia who bequeathed his kingdom to Rome.
After being driven from his throne by Mithridates VI of Pontus, Nicomedes IV was restored to power by a Roman commission led by Manius Aquillius. This intervention deepened Roman involvement in Anatolia and provoked the First Mithridatic War.
Nicomedes IV, under Roman pressure, attacked Mithridates VI's territory, raiding as far as Amastris. This aggression gave Mithridates a casus belli for his invasion of the Roman province of Asia, leading to the First Mithridatic War.
Nicomedes IV died without a legitimate heir and bequeathed his kingdom of Bithynia to the Roman Republic in his will. This act made Bithynia a Roman province, ending the independent kingdom and triggering the Third Mithridatic War.