Quattro Canti is the best-known name of a square in Palermo originally called Ottagono because of its octagonal shape formed by four buildings, Teatro del Sole because at any time of year at least one of the four cantons is lit by the sun, or Piazza Villena in honour of the Spanish viceroy in charge when construction of the facades was completed in 1620.
The entire project was entrusted to the Florentine architect Giulio Lasso, modelled on the Quattro Fontane crossroads in Rome.