The Duke of Cambridge and Prince Harry have revealed how fun their mum was in a clip from a new documentary to mark the 20th anniversary of her death.
The princes shared happy memories of their mother's fun antics during their childhood in Diana, Our Mother: Life and Legacy which airs Monday at 9pm on ITV.
"Our mother was a total kid through and through," said Prince Harry in the clip.
Prince Harry revealed that his mother told him: "You can be as naughty as you want, just don't...