Ochus (Greek: Ὦχος Ochos), known by his dynastic name Artaxerxes III (Old Persian: 𐎠𐎼𐎫𐎧𐏁𐏂𐎠 Artaxšaçāʰ; Greek: Ἀρταξέρξης), was King of Kings of the Achaemenid Empire from 359/58 to 338 BC. He was the son and successor of Artaxerxes II and his mother was Stateira. In Artaxerxes' later years, Philip II of Macedon's power was increasing in Greece, where he tried to convince the Greeks to revolt against the Achaemenid Empire. His activities were opposed by Artaxerxes, and with his support, the city of Perinthus resisted a Macedonian siege.