Prince William has spoken in depth in public for the first time about death of his mother, Diana, Princess of Wales, 12 years ago, saying "mummy" is now a hollow word "evoking only memories." Prince William was only 15 and his brother Prince Harry 12 when Diana died in a Paris car crash along with Dodi Fayed in 1997. The Prince made the comment Thursday during a speech to mark his new role as patron of Britain’s Child Bereavement Charity — a group his mother was once involved with. The British Press Association reported that he told the launch of the charity’s Mother’s Day campaign: “My mother Diana was present at your launch 15 years ago, and I am incredibly proud to be able to continue her support for your fantastic charity, by becoming your royal patron