Sicily Greeks, Lombards, and Normans worked together to form a society that historians have said created some of the most extraordinary buildings that the world has ever seen. Palermo continued on as the capital under the Normans. Roger's son Roger II of Sicily succeeded his brother Simon of Sicily as Count of Sicily, and was ultimately able to raise the status of the island to a kingdom in 1130, along with his other holdings, which included the Maltese Islands and the Duchies of Apulia and Calabria. He appointed the powerful Greek George of Antioch to be his "emir of emirs" and
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