International Immobiliare was a European real estate company. Its properties were worth over $6 billion, making it the largest landowner in the world. The Vatican owned a 25 percent interest. Michael Corleone bought a large block of stock during the 1970s, eventually becoming the company's largest single shareholder. In 1979, he expressed interest in buying the Vatican's stake for $600 million in the form of a deposit in the Vatican Bank, which would have given him controlling interest. He had plans to turn it into an international conglomerate. Despite fierce opposition to the Corleone family's aquisition of this company, the company's American directors voted to accept Michael's tender offer.