Capo dei capi
Capo dei capi ( ; "boss of [ the ] bosses" ) or capo di tutti i capi ( ; "boss of all [ the ] bosses" ) or Godfather are terms used mainly by the media , public and law enforcement community to indicate a supremely powerful crime boss in the Sicilian or American Mafia who holds great influence over the whole organization . 
<triplet> Capo dei capi <subj> crime boss <obj> subclass of