Every year, (otherwise known as Queen Elizabeth's second, more public birthday celebration) occurs during a weekend in June. The parade, which is brimming with pomp and ceremony, always features public appearances by nearly ever royal family member, when they gather on the balcony of Buckingham Palace. Last year, Kate Middleton stepped away from her maternity leave to appear, and it was also 's very first time attending. But 2019 also proves to be an exciting year for the event, because all three of the Duke and Duchess of Cambridge's children are in attendance—and Prince George, Princess Charlotte, and Prince Louis can always be relied up to deliver a serious dose of adorable-factor. See the cutest moments from some of the youngest members of the royal family's appearance at Trooping the Colour 2019 here!
Prince Louis made his Buckingham Palace balcony debut, along with his older brother Prince George and his sister Princess Charlotte.
To the delight of his mother, Prince Louis showed off his vigorous royal wave.
Princess Charlotte is excited by the crowds.
The three little royals look up to watch the jet flyover, which marks the end of the Trooping festivities.
Louis looked up at the jet flyover.
Princess Charlotte and Prince Louis both wave to the crowds.
Princess Charlotte gets into the spirit of things.
Prince Louis reaches for his dad, Prince William.
Kate Middleton directs her daughter's attention to the fly over.
Louis scratches his father's chin.
We got our first glimpse of Prince Louis and Princess Charlotte when they looked out the window on the ceremony early in the morning.