'Papa is missing you:' Prince George, Princess Charlotte and Prince Louis make home-made cards addressed to their 'Granny Diana' to mark Mother's Day - and say they 'think of her always'

Prince George, seven, Princess Charlotte, five, and Prince Louis, two, have made sweet home-made cards addressed to their 'Granny Diana' (pictured, inset, with Prince William and Prince Harry) to mark Mother's Day. The cards were shared by the Kensington Palace official Instagram account, with a sweet message encouraging those struggling with bereavement. Pictured left, Princess Charlotte's card and right, Prince George's card