Just like at last year’s ceremony, Louis could be seen playing with the cord for the blinds as the Duchess explained what was happening on the parade ground.
The young royal, who looked typically cute in a black suit and red tie, listened carefully as Sophie spoke to him.
Trooping the Colour – which is otherwise known as the King’s Birthday Parade – has been taking place for over 260 years and sees over 1,500 soldiers, 200 horses and 400 musicians march in front of the King on Horse Guards Parade in Whitehall.