Monsignor Mastai was made a Cardinal (with the titular of the Church of SS. Peter[8] and Marcellinus) on December 14, 1840, to the great happiness of his mother, a widow since 1833. During her lifetime he made a point of going once or more every year to visit her at Sinigaglia in the old house where his childhood had been passed. He frequently was obliged to come to Rome on business, and so long as he was Archbishop of Spoleto he lodged at the orphanage of Tata Giovanni on these occasions. That was no longer possible after he had been promoted to the more important See of Imola, as he was then expected to travel with a larger suite, for whom the orphanage did not provide fitting quarters. He resented the expense of these more ostentatious journeys, complaining that the money they cost would have been better spent among his poor at Imola, but he had no choice in the matter and had to submit to custom and tradition. A very unpleasant adventure marked the third year of his Cardinalate. In the heat of the summer he and two of his colleagues in the Sacred College arranged to take a few weeks of rest in a small and lonely villa in a remote part of the country. They knew, of course, that the revolutionary agents were abroad and at work, but it had not occurred to any of the trio that their own illustrious persons might be designated as worthy objects of attack. But a certain Riotti, a Piedmontese, deep-dyed in conspiracy, conceived the brilliant idea of kidnapping the three prelates and holding them as hostages, to be ransomed at the price of his own immunity should his treasonable designs be discovered. So, in the dead of night this hero, with six of his fellow-conspirators, broke into the Villa, and the unfortunate prelates were roused from their sleep to find themselves confronted with a band of desperate men armed to the teeth. The two other Cardinals were not fighters, but Giovanni Maria Mastai was. What weapons he used I know not—he had none at hand except his high courage and biting tongue; but the outcome was that the ruffians fled from his presence and were heard of no more. His companions said that it was entirely owing to his bravery that the whole party was saved.