See Prince Louis (and His First Royal Wave!) Make His Trooping the Colour Balcony Debut

Prince Louis has checked off another royal milestone: his Buckingham Palace balcony debut!

The little royal joined big brother Prince George and big sister Princess Charlotte along with the rest of the royal family at Trooping the Colour celebrations on Saturday — marking his first time at the event held in honor of Queen Elizabeth‘s birthday.

Prince Louis, who wore a blue and white outfit that was reminiscent of the outfits George and dad Prince William wore for their debuts, made his balcony entrance in the arms of mom Kate Middleton. Louis, who immediately began to wave excitedly to the crowds below, then reached for William who held him for the remainder of the iconic flypast. The 1-year-old royal waved throughout the celebration to the delight of his mom. When the family turned to go back inside the palace, he even waved to grandpa Prince Charles.