Luigi Villari, 1911 Encyclopædia Britannica, Volume 27… (1911)
“ Charles at that time was making preparations for an attack on the East Roman empire, and extorting more money than ever from the Sicilians in order to meet his expenses. Peter availed himself of the fears which Charles’s ambitions were arousing to open negotiations with his various enemies, especially with the Greek emperor, Michael Palaeologus, the Italian Ghibellines, the discontented Sicilian nobles, and perhaps with Pope Nicholas III. Suddenly the people of Sicily, goaded beyond endurance, rose against their rulers, regardless of these various plots. ”
