Artaxerxes I (ˌɑrtəˈzɜrksiːz, 𐎠𐎼𐎫𐎧𐏁𐏂𐎠 ; Ἀρταξέρξης) was the fifth King of Kings of the Achaemenid Empire, from 465 to December 424 BC. He was the third son of Xerxes I. He may have been the "Artasyrus" mentioned by Herodotus as being a satrap of the royal satrapy of Bactria. In Greek sources he is also surnamed "long-handed" (μακρόχειρ Makrókheir; Longimanus), allegedly because his right hand was longer than his left. Artaxerxes was probably born in the reign of his grandfather Darius I, to the emperor's son and heir, Xerxes I. In 465 BC, Xerxes I was murdered by Hazarapat ("commander of thousand") Artabanus, the commander of the royal bodyguard and the most powerful official in the Persian court, with the help of a eunuch, Aspamitres. Greek historians give contradicting accounts of events. According to Ctesias (in Persica 20), Artabanus then accused Crown Prince Darius, Xerxes's eldest son, of the murder, and persuaded Artaxerxes to avenge the patricide by killing Darius. But according to Aristotle (in Politics 5.1311b), Artabanus killed Darius first and then killed Xerxes. After Artaxerxes discovered the murder, he killed Artabanus and his sons. Artaxerxes had to face a revolt in Egypt in 460–454 BC led by Inaros II, who was the son of a Libyan prince named Psamtik, presumably descended from the Twenty-sixth Dynasty of Egypt. In 460 BC, Inaros II revolted against the Persians with the help of his Athenian allies, and defeated the Persian army commanded by satrap Akheimenes. The Persians retreated to Memphis, and the Athenians were finally defeated in 454 BC, by the Persian army led by Megabyzus, after a two-year siege. Inaros was captured and carried away to Susa. After the Achaemenid Empire had been defeated at the Battle of the Eurymedon (c. 469 BC), military action between Greece and Persia was at a standstill. When Artaxerxes I took power, he introduced a new Persian strategy of weakening the Athenians by funding their enemies in Greece. This indirectly caused the Athenians to move the treasury of the Delian League from the island of Delos to the Athenian acropolis.