Hayreddin Barbarossa, also known as Hzr Hayrettin Pasha and simply Hzr Reis, was an Ottoman corsair and subsequently admiral of the Ottoman Navy. During the mid-16th century, Barbarossa's naval successes established Ottoman supremacy over the Mediterranean. Khizr, who was born on the Greek island of Lesbos, began his naval career as a corsair under his elder brother, Oruç Reis. In 1516, the brothers took Algiers from Spain, and Oruç declared himself Sultan. Khizr received his brother's moniker, "Barbarossa," after Oruç's death in 1518. ("Redbeard" in Italian). In addition, he was given the honorific name Hayreddin (from Arabic Khayr ad-Din, "goodness of the faith" or "best of the faith"). Barbarossa reclaimed the Peón of Algiers from the Spaniards in 1529.