The title of count was conferred in 1428 on Guido Torelli for the services rendered to the Duke of Milan, Filippo Maria Visconti.

[1] His descendants maintained the regency of the territory until 1539, when, finding themselves in financial straits, the family was forced to sell their domains, purchased by Ferrante Gonzaga.

Gonzaga was in fact one of the most influential men of his time, from a political and military point of view.

When he died in 1557, his inheritance passed to his firstborn Cesare I Gonzaga, who definitively established his court in Guastalla in 1567.

Many works such as the church, the mint, Via Gonzaga and the completion of the ducal palace were built by him.