Cyrus the Younger. Born in 424 B.C., son of Darius. Governor of the western provinces of Asia Minor. After unsuccessfully plotting against his elder brother, Artaxerxes, he raised a large army, including a bout 12,000 Greek soldiers, with which he marched against him. but he was defeated and slain at Cunaxa. Xenophon then conducted the retreat of the 10,000 surviving Greeks. Died 401 B.C.