Nicomedes II of Bithynia in Wikipedia

Nicomedes II Epiphanes (Νικομήδης Β' ὁ Ἐπιφανής) was the king of Bithynia from 149 to c. 127 BC. He was fourth in descent from Nicomedes I. Nicomedes II was the son and successor of Prusias II and Apame IV. His parents were related, as they were first cousins. He was so popular with the people that his father sent him to Rome to limit his influence. However in Rome, he also gained favor from the Roman Senate, forcing Prusias to send an emissary with secret orders to assassinate him. But the emissary revealed the plot, and persuaded the prince to rebel against his father. Supported by Attalus II, king of Pergamum, he was completely successful, and ordered his father to be put to death at Nicomedia. During his long reign Nicomedes adhered steadily to the Roman alliance, and assisted them against Aristonicus of Pergamum. He was succeeded by his son.