Nicomedes IV of Bithynia

After being expelled from Bithynia by Mithridates VI of Pontus, Nicomedes IV was restored to his throne by Roman forces under Manius Aquillius. This intervention triggered the First Mithridatic War between Rome and Pontus.

Nicomedes IV allied with Rome during the First Mithridatic War, providing troops and resources. However, his forces were defeated by Mithridates VI, leading to his temporary flight and the Pontic occupation of Bithynia.

Nicomedes IV, the last king of Bithynia, bequeathed his kingdom to the Roman Republic in his will upon his death. This act transformed Bithynia into a Roman province, ending the Hellenistic monarchy and expanding Roman control in Asia Minor.