On the accession of Xerxes he was one of the chief instigators of the expedition against Greece. After the defeat of the Persians at Salamis (480) he was left by Xerxes with a large army to conquer Greece; but he was defeated in the following year (479), near Plataeae, by the combined Greek forces under the command of Pausanias, and was slain in the battle. (Harpers Dictionary of Classical Antiquities, 1898)
A distinguished Persian, son of Gobryas and son-in-law of Darius Hystaspis. In B.C. 492 he was sent by Darius to punish Eretria and Athens for the aid they had given to the Ionians; but his fleet was destroyed by a storm off Mount Athos, and the greater part of his land forces was destroyed on his passage through Macedonia by the Brygians, a Thracian tribe.