|Founded by||Leo Lanzetta|
|Founding location||South Philadelphia, Pennsylvania|
|Years active||early 1920s–1940|
|Territory||South Philadelphia and Atlantic City|
|Leader(s)||Pius, Leo and Ignatius Lanzetta|
|Criminal activities||Drug trafficking, prostitution, bootlegging, numbers writing|
|Allies||Michael Falcone, Louis Delrossi|
|Rivals||Mickey Duffy, Joseph Bruno, Salvatore Sabella, and other various street and bootlegging gangs in South Philadelphia|
There were six brothers in the gang: Leo (the leader), Pius "the Brain", Ignatius (who was a good dresser), Lucien (who had an explosive temper), Willie (the quiet one), and Teo "the Baby" Lanzetta (who was the youngest and made women swoon because of his good looks). It is not known when the brothers were born, but what is known is that they were born to Italian parents, that Leo Lanzetta was the oldest, and that Teo Lanzetta was the youngest of the six.
When Prohibition went into effect in January 1920, the Lanzettas organized an "Alky Cooking" supply network by providing a contingent of row house dwellers with home stills and paying them to produce sale-able liquor. The brothers then sold the liquor at higher prices. Their most trusted associates included Louis "Fats" Delrossi and Mike Falcone. The brothers' criminal careers were marked by frequent arrests and brutal violence.
At various times, the brothers feuded with several different groups of racketeers in South Philadelphia, as well as Mickey Duffy and some of his partners. Between 1924 and 1939, at least one brother was involved as a suspect or a material witness in no less than fifteen murder cases, including Pius' imprisonment and dismissal during the early stages of the investigation into the murder of Mickey Duffy. The brothers were also rivals of Max Hoff's criminal organization.
Leo was killed on August 22, 1925, as he left a barber shop at 7th and Bainbridge Streets, in retaliation for the murder of Joe Bruno. Sicilian Philadelphia family boss Salvatore Sabella was Leo's suspected killer. Pius was killed in a luncheonette on December 31, 1936 at 726 South Eighth Street. Willie was found with his head in a burlap bag and a bullet in his brain on July 2, 1939.
Teo was convicted on drug trafficking charges and sent to Levenworth Prison in 1940. Along with Delrossi and Falcone, Ignatius was sent to prison in 1936 for breaking New Jersey's "Gangster Law" and released in 1940; even though their sentences (according to C. Ronald Huff in "Gangs in America III") were, "not more than 10 years and not less than 5 years of imprisonment".
When Ignatius was released, he fled to Detroit, Michigan with Lucien and their mother.
In the first season of the HBO series Boardwalk Empire, the Lanzetta brothers are the basis for Nucky Thompson's main rivals, the D'Alessio brothers. The D'Alessio brothers try to take over Atlantic City, New Jersey's bootlegging operations along with Mickey Doyle, Lucky Luciano, Meyer Lansky, and Arnold Rothstein. In the show, the brothers' names are Leo, Ignatius, Matteo, Lucien, Sixtus, and Pius. In the show, Ignatius and Pius are killed by freelance assassin Richard Harrow, Matteo is killed by Atlantic City North Side leader Albert "Chalky" White, Lucien and Leo are killed by James "Jimmy" Darmody, and Sixtus is killed by South Side Gang bouncer Alphonse "Scarface" Capone in Chicago, Illinois.