Palazzo Chiaramonte has a long and bloody history. When it was built, the sea came to within a hundred meters (and as Edward Longshanks learned in Wales, it's a good idea to build your castles by the sea). The head of the Chiaramonte family, Andrew, rebelled in the 14th century, and duly lost his own head to the Kings' axe right outside the Palace.
It was used by the Spanish Inquisition (the phrase "kill 'em all and let God sort them out" originated with these lovely people) and their prisoners left their marks - prayers, name, curses and all sorts - scratched on the walls in the attic and in the dungeons.
Now home to Gattuso's famous "la Vucceria" painting.