Giuseppe Balsamo, better known as the Count of Cagliostro, was an Italian adventurer, alchemist and esotericist who lived in the Eighteenth Century.  After living wandering through the courts of half of Europe, he was convicted by the Saint Inquisition to ergastolo for numerous offences, the most serious of which was heresy.  Jailed for about a year inside the famous Cagliostra (after which he was named) he was transferred to the Rocca di San Leo, where he died.