British royals Prince William and Prince Harry will both make speeches at a memorial service for their late mother DIANA, PRINCESS OF WALES to mark the 10th anniversary of her death later this year (07). The princes - who have also organised a concert in London to commemorate their mother's life - will attend a service at the Guards' Chapel in the British capital. The event will take place on 31 August, 10 years to the day after Diana was killed in a Paris, France car crash with her lover Dodi Fayed. A senior royal aide says, "The details of the service are still being worked on but it is a fair assumption to make that the two young princes will both give readings."