What really made Princess Diana famous?

I understand that she gained some publicity before and after she married prince charles but there are many european princesses in the various european royal families and most of them are only known in their countries of origin not worldwide... Sure, princess diana did charity work but she wasn't the first... show more I understand that she gained some publicity before and after she married prince charles but there are many european princesses in the various european royal families and most of them are only known in their countries of origin not worldwide...
Sure, princess diana did charity work but she wasn't the first royal to take part in charity work, she was glamorous and stylish but there were many princesses that were equally beautiful & glamorous..... she had marriage problems just like so many other people...
So i just want to know what made her so famous because there are many princesses in europe that haven't gained as much fame and publicity as she did....
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