The short-lived Neo-Babylonian Empire (620–539 BC) succeeded that of Assyria. It failed to attain the size, power or longevity of its predecessor; however, it came to dominate The Levant, Canaan, Arabia, Israel and Judah, and to defeat Egypt. Initially, Babylon was ruled by yet another foreign dynasty, that of the Chaldeans, who had migrated to the region in the late 10th or early 9th century BC. Its greatest king, Nebuchadnezzar II, rivalled another non native ruler, the ethnically unrelated Amorite king Hammurabi, as the greatest king of Babylon. However, by 556 BC, the Chaldeans had been deposed from power by the Assyrian born Nabonidus and his son and regent Belshazzar.