Moving to the interior, they asked asylum from Prince Cigala of Tiriolo, who allowed them to settle in the area which is today known as "Colla Pagliara", in exchange for the payment of a modest head tax.

San Pietro Apostolo was administered by its neighbor Tiriolo until the end of the 18th century when it obtained its autonomy under law No.

On 4 May 1811 the comune was given the name of San Pietro Apostolo, attesting its separation from Tiriolo which remained, however, the administrative seat.

The leader of the Expedition of the Thousand, coming from Maida, was a most welcome guest of the Garibaldi supporter Anselmo Tomaini (already condemned to death by the Bourbons for having been one of the supporters of the movements of Maida and Filadelfia) where, with his closest collaborators, he took note of the situation and planned the forthcoming operations that would have opened the roads to Naples; on the same night Francisco Stocco, with only a few men, induced the surrender of 10,000 men commanded by General Ghio and encamped at Soveria Mannelli, by cleverly having ignited numerous fires placed very visibly on the surrounding heights.

The silk thus produced was almost all locally processed and for the most part marketed in Catanzaro, Nicastro and also in the neighboring town of Serrastretta.