The Street of the Merchants, where you will find the Palace of the Jurisconsults (1564) decorated with a statue of Saint Ambrose the Teacher, leads to this square, almost contiguous to the Duomo square. This quiet square has the loggia of the Osii, with coats of arms and statues of saints, loggia of the Baroque palace of the Palatine schools and the palace of the commune (the Broletto Nuovo) where the statue of the Magistrate Oldrado da Tresseno is displayed in a niche on the facade.