Catherine reveals she let George, Charlotte and Louis stay up as William has 'bags under his eyes'
The Princess of Wales also shared details about the family's one-year-old puppy Otto during the garden party
Prince Louis
Queen Elizabeth II's special gesture to George, Charlotte and Louis during her final months
Three of the late Queen's great-grandchildren made a late trip to Balmoral in 2022
Louis voted most mischievous royal for Dennis the Menace's 75th birthday
Louis has been described as 'the monarchy's official mischief correspondent'
