PIAZZA, a town of the island of Sicily, in the intendancy of Calatanisetta and district of Noto. It is a fine town, situated on a hill, in a healthy situation, 100 miles from Palermo, the Plutia of Diiodorus. It contains 2424 houses, with 13,000 inhabitants, who cultivate the fertile soil near them, and carry on a great trade in its production. Near to it is the Lake of Pergusa, the scene of the rape of Proserpine.