A famous corsair and later grand admiral of the Ottoman fleet. He and his brother Aruj first came to fame for their success against Christian vessels in the eastern Mediterranean. Aruj was killed fighting in 1518 and his brother Khayr ad-Din diplomatically ceded Algiers and its territory to the Ottoman sultan. He served as viceroy until 1533, when he was made grand admiral. In 1534 he took Tunis, but Charles V expelled him in 1535. After a number of minor engagements he retired in 1544.