Palazzo dei Diamanti is a palace located on Corso Ercole I d’Este 21 in Ferrara, northern Italy. It is one of the most famous palaces in Italy, as well one of the most influential examples of European Renaissance architecture.Designed by Biagio Rossetti upon commission by Sigismondo d’Este, brother of Duke Ercole I, in 1492, it was built between 1493 and 1503. Used as a residential home by the Este and then, starting in 1641, by the Villa marquees, in 1832 the palace was acquired by the municipal in order to house the National Gallery of Art and the Civic University.The main floor of the Palace houses the National Art Gallery of Ferrara, with paintings from the Ferrara school from the Middle Ages up to the 18th century. The oldest paintings are large frescoes (Triumph of sant’Agostino by Serafino da Modena) and wooden panels with gold-leaf backgrounds, such as theMadonna and Child by Gentile da Fabriano. The main artists from the 15th century are Cosmè Tura (Giudizio and the Martyrdom of san Maurelio), Ercole de’ Roberti, Vicino da Ferrara and Michele Pannonio, who each have several works here. From the Este family collections, there are works by various artists, one of whom is Andrea Mantegna (Cristo con l’animula della Madonna). There are also two works by unidentified artists from the collection of the Marquee Leonello d’Este at the Belfiore Palace. The 16th century is represented by the master of classicism Garofalo; there are many works here by this artist, one of the most noteworthy being Pala Costabili, done in collaboration with Dosso Dossi. The period of mannerism is represented by Bastianino, who uses a technique similar to that of Michelangelo in his works. Other artists present are Vittore Carpaccio, Ortolano, Manieri, Panetti, Coltellini, Maestro degli Occhi Spalancati and many more.On the lower floor, there is the Civic Gallery of Modern and Contemporary Art, which has hosted high level temporary shows since 1992, when the space was inaugurated by the show on Claude Monet and his friends.