VIENNA - APRIL 14: Diana, Princess of Wales attends a gala at the Vienna Burgh Theatre on April 14, 1986 in Vienna, Austria (Photo by Anwar Hussein/Getty Images)
VIENNA - APRIL 14: Diana, Princess of Wales attends a gala at the Vienna Burgh Theatre on April 14, 1986 in Vienna, Austria (Photo by Anwar Hussein/Getty Images)