Bernardo Provenzano (born January 31, 1933 in Corleone, Sicily) is a member of the Sicilian Mafia (Cosa Nostra) and is suspected of having been the head of the Corleonesi, a Mafia faction that originated in the village of Corleone, and de facto capo di tutti capi (boss of bosses) of the entire Sicilian Mafia until his arrest in 2006.