see more

Diana, Princess of Wales (1961 - 1997) visiting patients suffering from AIDS at the Hospital Universidade in Rio de Janeiro, Brazil, 25th April 1991. (Photo by Tim Graham Photo Library via Getty Images)

Diana, Princess of Wales (1961 - 1997) visiting patients suffering from AIDS at the Hospital Universidade in Rio de Janeiro, Brazil, 25th April 1991. (Photo by Tim Graham Photo Library via Getty Images)