Editors. "Revolution begins in Piedmont". The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=17799, accessed 18 May 2013.]
A revolution begins in Piedmont, influenced by the secret societies known as the Carbonari. It puts Charles Albert Carignan on the throne rather than the hereditary successor, Charles Felix, but Charles Albert soon turns against the rebels.