Philip of Macedon, the father of Alexander the Great, usurped the kingdom from the infant king Amyntas, his nephew and ward, in 360 B.C.; having secured his throne, he entered on a series of aggressive wars, making expeditions into Thrace and Thessaly; the siege of Olynthus brought him into conflict with Athens, the two cities being allies, and occasioned some of the most brilliant orations of Demosthenes; the successive appeals for his aid against their enemies by the Thebans and the Argives led him into Greece and into the Peloponnesus; in 339 B.C. a council of Greek cities appointed him commander-in-chief of their leagued forces in a projected war against the Locrians, but the Athenians and Thebans opposed his coming; the defeat of their armies at Chæronea, 338 B.C., placed all Greece at his feet; his next project was an expedition against Persia, but while preparations were on foot he was assassinated at Ægæ; a man of unbridled lust, he was an astute and unscrupulous politician, but of incomparable eloquence, energy, and military skill (382‒336 B.C.).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Philip * Philip II.