With the surprise passing, Camilla showed her good humour by breaking into a warm smile, as she delighted at Louis’ antics.
The incident occurred during Louis debut on the famous balcony, where he joined the royal family, including older siblings Prince George and Princess Charlotte, as well as mum and dad Prince William and mum Kate Middleton, the Duke and Duchess of Cambridge, for the first time.
Also present were the Queen Elizabeth, Prince Philip, Prince Charles, Prince Harry and Meghan Markle, the Duke and Duchess of Sussex, but baby Archie was a no show.