Question: the Cotroni crime family was supplanted by a family based in which city ?
Context: Vincenzo "Vic" Cotroni (1911 – September 16, 1984), also known as "The Egg", was a Montreal-based caporegime of the Cotroni crime family, considered a branch of the Bonanno crime family. Paolo Violi (February 6, 1931– January 22, 1978) was an Italian-Canadian mobster and acting capodecina of the Bonanno crime family's faction in Montreal, the Cotroni crime family. Francesco "Frank" Cotroni (1931 – August 17, 2004), also known as "The Big Guy", was an Italian-Canadian Mafia boss of the Cotroni crime family in Montreal. The Milwaukee crime family or Balistrieri crime family is an American Mafia crime family based in Milwaukee, Wisconsin.  The crime family was considered a branch of the Chicago Outfit.  The family's most influential boss was Frank "Mr. Big" Balistrieri, who was greatly involved in the Las Vegas skimming casinos. Today, the crime family is nearly extinct, since Balistrieri died in 1993, with the "Chicago Outfit" gaining control over some of the illegal rackets in the area. Réal Simard (born January 7, 1951), is a French-Canadian from Montreal known for being a hitman for Frank Cotroni of the Cotroni crime family. The New Orleans crime family is an American Mafia Crime family based in the city of New Orleans.  The Crime Family has a history of criminal activity dating back to the late nineteenth century.  The family reached its height of influence under Carlos Marcello, one of America's most powerful Mafia dons during the mid-twentieth century and at its height had over a hundred members.  However, a series of setbacks during the 1980s reduced its clout, and law enforcement dismantled most of what remained shortly after Marcello's death in 1993.  In spite of this, it is believed that some elements of the organization remain active in the Big Easy today. The Patriarca crime family (pronounced ] ) is also known as the New England crime family, the Providence crime family, the Boston crime family, the Boston Mafia, the Providence Mafia, the New England Mafia, or The Office and is an Italian-American Mafia crime family based in New England.  The crime family has two distinct factions, one active in Providence, Rhode Island and the other in Boston, Massachusetts. The Rizzuto family is a crime syndicate based in Montreal, Quebec, Canada.  The family territory covers most of southern Quebec and Ontario.  The FBI considers the family to be connected to the Bonanno crime family, but Canadian law enforcement considers it to be a separate crime family.  The Rizzuto family was part of the powerful Montreal Cotroni crime family until an internal war broke out and the Rizzutos formed their own organization. The Cotroni crime family was a Mafia organization based in Montreal, Quebec, Canada.  The Cotroni family was historically controlled by mobsters of Calabrian ancestry.  The territory controlled by the family once covered most of southern Quebec and Ontario, until the Rizzuto crime family supplanted them.  The FBI considered the family a branch of the Bonanno crime family. William "Wild Guy" Grasso was an Italian-American gangster from East Haven, Connecticut who served as underboss to Raymond Patriarca, Jr. (a.k.a. "Junior") in the Patriarca crime family, also known as the New England crime family, the Providence crime family or the Boston crime family.  The Patriarca family is a Mafia crime family based in New England.  Succeeding his father Raymond L.S. Patriarca as boss after his father's death in 1984, Junior was considered a weak leader.  He managed to keep the peace in his crime family due to the support of the Gambino crime family of New York.  When Junior's original underboss Ilario "Larry Baione" Maria Antonio Zannino was sentenced to thirty years in prison in 1987, it further weakened Junior's position.  With Zannino in jail, Grasso became underboss.
Answer: Montreal