Platæa, a city of ancient Greece, in western Boeotia, neighbour and ally of Athens, suffered greatly in the Persian and Peloponnesian Wars. It was destroyed by the Persians 480 B.C., by the Peloponnesian forces 429 B.C., and again by the Thebans 387 B.C. Philip of Macedon restored the exiles to their homes in 338 B.C.