The Prince and Princess of Wales are enjoying their summer holiday with their three children, Prince George, Princess Charlotte, and Prince Louis, who will still be abiding by a set of household rules

The Waleses are said to be enjoying their summer holiday in Norfolk – and no doubt Kate has laid down some ground rules to keep the three children in check.

While they have the help of a nanny, the Prince and Princess of Wales are hands-on parents, and get stuck in with a range of activities from baking to sports events to keep the children entertained for weeks on end without school to keep them busy. But as we have seen at certain engagements, the youngest, Prince Louis, can get overexcited and act out in front of the cameras.

At the late Queen’s Jubilee celebrations, the six-year-old was seen pulling a face and sticking his tongue out when his mum was trying to quieten him down, before he then proceeded to cover Kate’s mouth. More recently, he stole the show once again at this year’s Trooping the Colour, as he was caught mischievously playing with the blind chord before heading out onto the famous Buckingham Palace balcony with his relatives.

Princess Charlotte, nine, has also been caught on camera sticking her tongue out. But the mum-of-three, 42, reportedly uses a ‘secret code’ phrase to get the royal kids to behave – and it works every time.