The Commission (mafia)
After Maranzano's murder in 1931, the Mafia families called a meeting in Chicago. The purpose of the meeting was to replace the old Sicilian Mafia regime of "boss of all bosses" and establish a rule of consensus among the crime families. Charlie Luciano established a Mafia board of directors to be known as "The Commission" to oversee all Mafia activities in the United States and serve to mediate conflicts between families. The Commission consisted of seven family bosses: the leaders of New York's Five Families: Charlie "Lucky" Luciano, Vincent Mangano, Tommy Gagliano, Joseph Bonanno, and Joe Profaci; Chicago Outfit boss Al Capone; and Buffalo family boss Stefano Magaddino. Charlie Luciano was appointed chairman of the Commission. The Commission agreed to hold meetings every five years or when they needed to discuss family problems.
Al Capone
Capone was widely assumed to have been responsible for ordering the 1929 Saint Valentine's Day Massacre in an attempt to eliminate Bugs Moran, head of the North Side Gang. Moran was the last survivor of the North Side gunmen; his succession had come about because his similarly aggressive predecessors Vincent Drucci and Hymie Weiss had been killed in the violence that followed the murder of original leader Dean O'Banion.