collection includes Picasso, Renoir, Canaletto, Matisse, and Canova masterpieces, and opened in 2002. The gallery also puts on temporary modern art exhibitions. She commissioned art from the likes of Andy Warhol and Richard Avedon. In 1970, Agnelli founded the National Commission of United World Colleges. She was a member of the International Board of Trustees of the Salk Institute for Biological Studies in San Diego, California, and of the International Council of the Museum of Modern Art in New York. Among others, she was also vice-president of the Council of Palazzo Grassi in Venice, as well as president of I 200 del Fai in Milan and of the Association of Turin Friends of Contemporary Art in Turin. The Swans The reserved, patrician tastemaker, and socialite Agnelli was known for her inclusion in Truman Capote's the Swans, a circle of wealthy, stylish, and well-married women friends whose company he adored because, in his words, they "had created themselves, as he had done", and "had stories to tell". According to Capote, Agnelli was "the European swan numero uno", one of the youngest in a group that included Babe Paley, Gloria Guinness, C. Z. Guest, Slim Keith, Pamela Harriman, Lee Radziwill, and Jacqueline Kennedy Onassis. In her autobiography, Washington Post publisher and Capote friend Katharine Graham recounted that the author once told her that if Paley and Agnelli were "both in Tiffany's window, Marella would be more expensive." Agnelli herself was nicknamed the Swan by Richard Avedon for a 1949 photograph that appeared on Vogue; Agnelli was among the notable photos Avedon took. Her other nickname, the Last Swan, was coined by Capote. Death After a long illness, Agnelli died at the age of 91 on 23 February 2019 at her home in Turin; the announcement was made by her family. Days prior to her death, Agnelli's health deteriored, and the cause of death was ruled to be from complications of Parkinson's disease; she had been in a condition of invalidity for several years, and in her last months she was artificially fed. The funeral was held in a strictly private form on 25 February 2019 in the church of San Pietro in Vincoli at Villar Perosa. At the end of the ritual, her body was buried in the family chapel in the city cemetery. Among others, she was mourned by association football club Juventus, which is owned by the Agnelli family. Popular