sentences:  His predecessors in this rank included the famous Ottoman admiral and cartographer Piri Reis and admiral Koca Murat Reis, who had also participated in the Battle of Preveza in 1538.Seydi Ali Reis departed from Aleppo on 7 December 1553 and, after visiting numerous religious sites and important cities in the region, finally arrived at Basra on the Persian Gulf towards the beginning of February 1554.His mission was to take the 15 Ottoman galleys anchored there, which were previously under the command of Piri Reis, to the chief homeport of the Ottoman Indian Ocean Fleet at Suez, on the Red Sea.