Alphonse Gabriel Capone ( ; ] ; January 17, 1899 January 25, 1947), sometimes known by the nickname Scarface, was an American mobster, crime boss and businessman who attained fame during the Prohibition era as the co-founder and boss of the Chicago Outfit. His seven-year reign as crime boss ended when he was 33 years old.

Can we draw the following conclusion?
Alphonse Gabriel Capone was well known during prohibition
Yes