Well, I think they call Diana, regardless of her pedigree, the People's Princess because she was the first royal in a long time that displayed any kind of empathy for the common folks of Britian. In watching the movie the Queen, it was so striking that the Royal family were so insular and not aware of the public's affection for Diana and couldn't act accordingly. I read that it was William and Harry's idea to walkabout the palace gates and look at all the flowers and talk to the people who gather after Diana's death. That is remarkable because I wouldn't at that age be so level headed upon hearing about my mother's death. It was also their idea to walk behind the hearse.