(c. 519—465 bc)
(c. 519–465 bc),
son of Darius I, king of Persia 486–465. He continued his father's attack on the Greeks for their support of the Ionian cities that had revolted against Persian rule. His invasion of Greece achieved victories in 480 at Artemisium and Thermopylae, but defeats at Salamis (480) and Plataea (479) forced him to withdraw.