Roberto Calvi (13 April 1920 – 17 June 1982) was an Italian banker dubbed "God's Banker" (Italian: Banchiere di Dio) by the press because of his close association with the Holy See. A native of Milan, Calvi was Chairman of Banco Ambrosiano, which collapsed in one of modern Italy's biggest political scandals. His death in London in June 1982 is a source of enduring controversy and was ruled a murder after two coroner's inquests and an independent investigation. In Rome, in June 2007, five people were acquitted of the murder.
Claims have been made that factors in Calvi's death were the Vatican Bank, Banco Ambrosiano's main shareholder; the Mafia, which may have used Banco Ambrosiano for money laundering; and the clandestine Masonic lodge Propaganda Due. SOURCE: Wikipedia