Frank Costello was an influential American mobster who played a significant role in organized crime during the mid-20th century. Born on January 26, 1891, in L'Aquila, Italy, he immigrated to the United States as a child. Costello became a prominent figure in the Lucchese crime family and later the Genovese crime family, where he earned the nickname "The Prime Minister of the Underworld" due to his political connections and business acumen. Costello was known for his involvement in various illegal activities, including gambling and bootlegging. He was also known for his ability to maintain a low profile while exerting considerable influence over politicians and law enforcement. His criminal career came to an end in the 1950s, and he was eventually convicted of tax evasion, leading to his deportation to Italy, where he lived until his death on February 18, 1973.