According to Edmund von Lippman, the invention of the three-cylinder mill in this region revived its sugar industry. Frederick II instituted a monopoly on the grain trade to this region via a legal code called the Liber Augustalis. The Kalbid dynasty introduced oranges and lemons to this region, which was once part of the Fatimid Caliphate. John of Procida was involved in a revolt (-5[1])in this region between Peter of Aragon (-5[1])and Charles of Anjou. This island was conquered under the leadership (10[2])of Roger Bosso and the Hauteville scion Robert (10[1])Guiscard, and was the site (10[1])of an Eastertide revolt that broke out against the French. For 10 points, a blend of Norman and Arab culture emerged on what island, where a 1282 (10[1])“Vespers” revolt broke out in Palermo? (10[2])■END■ (10[1])