 The land was owned by the House of Borromeo of San Miniato in the 14th century and possibly earlier.Peschiera Borromeo's main attraction is the Borromeo Castle, built in 1437 by Vitaliano Borromeo.The Borromei were, during the later years of the Ambrosian Republic, pro-Francesco Sforza, and housed him in the castle while he besieged Milan in 1450.