From this was developed a complete system of Carbonarism, the peculiar principles of which were introduced from Italy by two of Bazard's friends.
In October 1820 Pellico was arrested on the charge of carbonarism and conveyed to the Santa Margherita prison.
On the contrary, Carbonarism flourished and spread to other parts of Italy, and countless lodges sprang up, their adherents comprising persons in all ranks of society, including, it is said, some of royal blood, who had patriotic sentiments and desired to see Italy free from foreigners.
The French revolution of 1830 had its echo in Italy, and Carbonarism raised its head in Parma, Modena and Romagna the following year.