Founded in the sixth century, the town of Crema endured a particularly hazardous geographical position in terms of its civic independence.

It bore a good deal of the military action, and, as Cremona regularly rejected its demands in litigation for redress and reparations, Crema developed a grudge.

To gain an advantage, the leaders of Cremona urged the Emperor Frederic Barbarossa to destroy Crema in exchange for a considerable sum of money, which would allow him to pursue his ventures in the Po Valley.

It was the Emperor Napoleon, King of Italy, who, on 19 July 1806, brought the diocese back to life with his nomination of Tommaso Ronna of Milan to be the new bishop; Pius VII approved the candidate on 19 March 1807.

[14] On 5 February 1835, with the bull "Romani Pontifices", Pope Gregory XVI assigned the diocese of Crema as suffragan of the archdiocese of Milan.