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- For other historical characters named Megabyzus, see Megabyzus (disambiguation).
Megabyzus (Ancient Greek: Μεγάβυζος, calque of Old Persian Bagabuxša-, meaning "God saved") was a Achaemenid Persian general, son of Zopyrus, satrap of Babylonia. His father was killed when the satrapy rebelled in 482 BC, and Megabyzus led the forces that recaptured the city, after which the statue of the god Marduk was destroyed to prevent future revolts. Megabyzus subsequently took part in the expedition against Greece. Herodotus claims that he refused to act on orders to pillage Delphi, but it is doubtful such orders were ever given.
According to Ctesias, who is not especially reliable but is often our only source, Amytis, wife of Megabyzus and daughter of Xerxes, was accused of adultery shortly afterwards. As such, Megabyzus took part in the conspiracy of Artabanus to assassinate the emperor, but betrayed him before he could kill the new emperor Artaxerxes as well. In a battle, Artabanus' sons were killed and Megabyzus was wounded, but Amytis interceded on his behalf and he was cured.
After this Megabyzus became satrap of Syria. Together with Artabazus, satrap of Phrygia, he had command of the Persian armies sent to put down the revolt of Inarus in Egypt. They arrived in 456 BC, and within two years had put down the revolt, capturing Inarus and various Athenians supporting him(1). They then turned their attention to Cyprus, which was under attack by the Athenians, led by Cimon. Shortly afterwards hostilities between Persia and Athens ceased, called the peace of Callias.
Some time later Megabyzus himself revolted. Ctesias tells us the reason was that Amestris had the captives from the Egyptian revolt executed, though Megabyzus had given his word that they would not be harmed. Armies under Usiris of Egypt and then prince Menostanes, a nephew of the king, were sent against him, both foregoing battle for (non-fatal) duels between the generals, and in both cases Megabyzus was victorious. The king resolved to send his brother Artarius, the eunuch Artoxares and Amytis in a peace embassy. His honour restored, Megabyzus agreed to surrender and was pardoned, retaining his position. Some time later, Megabyzus saved Artaxerxes from a lion in a hunt, was subsequently exiled to Cyrtae for violating the royal prerogative to make the first kill, but returned to Susa by pretending to be a leper and was pardoned.
(1) Thucydides, History of the Peloponnesian War, I.104, 109