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Vito Corleone is a composite of New York City Dons. Like Joe Profaci, he was the biggest olive oil importer in the US. Like Joe Bonanno, he had a son rising in the family, and suffered a betrayal by one of his underbosses. Like Salvatore Maranzano, he vanquished an opponent in an urban war, and left him dead in a restaurant. But the Don that Vito was most like was Frank Costello. Costello, called "the Prime Minister of the Underworld," was all-powerful in gambling and unions, controlled many of the politicians and judges in New York, retired after being shot, and died peacefully of a heart ailment.