In 1403 it passed to Guido Torello, cousin of Filippo Maria Visconti of Milan.
Sepolcro, in the lower part of the town, has two large stone figures of saints on its facade (of the end of the 13th century) and, within, painted wooden figures and the tomb of Guido Castiglione (d.
The old ducal palace - one of the largest buildings of its kind in Europe - was begun in 1302 for Guido Bonaccolsi, and probably completed in 1328 for Ludovico Gonzaga; but many of the accessory apartments are of much later date, and the internal decorations are for the most part the work of Giulio Romano and his pupils.
Dating from the 14th century, and restored by Fonsega in the 17th, it is a building of extraordinary richness of decoration, with paintings and sculpture by Guido Reni, Lanfranco, Caravaggio, D'Arpino, Solimene, Luca Giordano and notably a " Descent from the Cross " by Ribera, conconsidered the finest work of this master.
The Christian name of the father was Piero (the son of Antonio the son of Piero the son of Guido, all of whom had been men of law like their descendant).