along the coasts of Liguria and Sicily. Khizr's career under Oruç In 1503, Oruç managed to seize three more ships and made the island of Djerba his new base, thus moving his operations to the Western Mediterranean. Khizr joined Oruç at Djerba. In 1504, the brothers contacted Abu Abdallah Muhammad IV al-Mutawakkil, ruler of Tunis, and asked permission to use the strategically located port of La Goulette for their operations. They were granted the right to do so on the condition of giving one-third of their spoils to the sultan. Oruç, in command of small galiots, captured two much larger papal galleys near the island of Elba. Later, near Lipari, the two brothers captured a Sicilian warship, the Cavalleria, with 380 Spanish soldiers and 60 Spanish knights from Aragon on board, who were on their way from Spain to Naples. In 1505, they raided the coasts of Calabria. These exploits increased their fame, and they were joined by several other well-known Muslim corsairs, including Kurtoğlu (known in the West as Curtogoli). In 1508, they raided the coasts of Liguria, particularly Diano Marina. In 1509, Ishak also left Mytilene and joined his brothers at La Goulette. The fame of Oruç increased when, between 1504 and 1510, he transported Muslim Mudéjars from Christian Spain to North Africa. His efforts of helping the Muslims of Spain in need and transporting them to safer lands earned him the honorific name Baba Oruç (Father Oruç), which eventually – due to the similarity in sound – evolved in Spain, France, and Italy into Barbarossa (meaning "Redbeard" in Italian). In 1510, the three brothers raided Capo Passero in Sicily and repulsed Spanish attacks on Bougie, Oran and Algiers. In August 1511, they raided the areas around Reggio Calabria in southern Italy. In August 1512, the exiled ruler of Bougie invited the brothers to drive out the Spaniards, and during the battle Oruç lost his left arm. This incident earned him the nickname Gümüş Kol ("Silver Arm" in Turkish), in reference to the silver prosthetic device that he used in place of his missing limb. Later that same year, the brothers raided the coasts of Andalusia, capturing a galliot of the Lomellini family of Genoa, which owned Tabarca island. They subsequently landed at Menorca and captured a coastal castle and then headed towards Liguria, where they captured four Genoese galleys near Genoa. The Genoese sent a fleet to