Frank Costello, born Francesco Castiglia, or Castilla (January 26, 1891 - February 18, 1973) was a New York gangster who rose to the top of America's underworld, controlled a vast gambling empire across the United States and enjoyed political influence like no other La Cosa Nostra boss. Nicknamed the "Prime Minister of the Underworld" he became one of the most powerful and influential Mafia bosses in American history, eventually leading a criminal organization dubbed by law enforcement as the "Rolls-Royce of organized crime", the Luciano crime family (later called the Genovese crime family).