Perseus, Or Perses, the last king of Mace-don, reigned from 179 to 168 B. 0. He was the son of Philip V., whom he persuaded to put to death a younger son Demetrius, suspected of ambitious designs. Immediately upon his accession he confirmed the treaty concluded by his father with the Romans, but began secretly to prepare for war, and endeavored to form alliances with the states of Greece. Hostilities were hastened by an attempt of Perseus to assassinate Eumenes, king of Pergamus, who had reported to the senate the warlike preparations of the Macedonians.' The senate pronounced Perseus an enemy of the republic (172), and the consul P. Licinius Crassus was sent with an army to invade his dominions. The war lasted four years, mostly with disadvantage to the Romans; but at last the avarice of Perseus alienated his allies, and on June 22, 168, he was signally defeated near Pydna by the consul L. Paulus AEmilius. He took refuge in Samothrace, where he surrendered, and in the following year was carried to Rome. Paulus AEmilius, whose triumph he adorned, treated him kindly, and when he was afterward cast into a dungeon by order of the senate, procured his removal to a place of honorable captivity to Alba, where he died after a few years.