Lord of Asia (Greek: Κύριος της Ασίας) was the title given to Alexander the Great after the Battle of Gaugamela in 331 BC. The title passed on to his successors (the Antigonids, Ptolemies and Seleucids; and, later, his son, Alexander IV) after his death in Babylon in 323 BC., though none of them held any actual power in Asia or any other part of the Hellenistic Alexandrian Empire; the actual power fell to the numerous regents or the rebellious Persian satraps. With the partition of his empire and the rise of the Diadochi, the title of Lord of Asia fell in abeyance.