Bernardo Provenzano (Italian pronunciation: [berˈnardo provenˈtsaːno]; 31 January 1933 – 13 July 2016)[1] was an Italianmobster and chief of the Sicilian Mafia clan known as the Corleonesi, a Mafia faction that originated in the town of Corleone, and de facto il capo dei capi (the boss of bosses). His nickname was Binnu u tratturi (Sicilian for "Bernardo the tractor") because, in the words of one informant, "he mows people down."[2] Another nickname was il ragioniere ("the accountant") due to his apparently subtle and low-key approach to running his crime empire, at least in contrast to some of his more violent predecessors.[2][3]