Syracuse, Sicily Sicily until it fell to the Aghlabids after another siege on 20/21 May 878. During the two centuries of Muslim rule, the capital of the Emirate of Sicily was moved from Syracuse to Palermo. The Cathedral was converted into a mosque and the quarter on the Ortygia island was gradually rebuilt along Islamic styles. The city, nevertheless, maintained important trade relationships, and housed a relatively flourishing cultural and artistic life: several Arab poets, including Ibn Hamdis, the most important Sicilian Arab poet of the 12th century, flourished in the city. In 1038, the Byzantine general George Maniakes reconquered the city,
Roger II of Sicily Proud, descended the peninsula to support the three rebels. Henry, Robert, and Ranulf took a large contingent of troops to besiege the peninsular capital of the kingdom, Salerno. Roger remained in Sicily, leaving its mainland garrisons helpless under the chancellor Robert of Selby, while even the Byzantine emperor John II Comnenus sent subsidies to Lothair. Salerno surrendered, and the large army of Germans and Normans marched to the very south of Apulia. There, in June 1137, Lothair besieged and took Bari. At San Severino, after the victorious campaign, he and the pope jointly invested Ranulf as duke of Apulia in