Prince Louis appears to have met his match, after his no-nonsense sister Charlotte forced him to behave in a viral video clip from the Platinum Jubilee celebrations.
The Cambridge's youngest won the hearts of may royal fans over the weekend with his cooky characteristics - especially on the Buckingham Palace balcony following Trooping the Colour.
The four-year-old even cracked a smile from Queen Elizabeth II - who enjoyed her great-grandson's cheeky display and lack of regards to the typical royal airs and graces.
