The Princess of Wales was at the Garter Day Service at St. George’s Chapel, Windsor Castle, an event she missed last year due to her cancer treatment

Trooping the Colour may be a celebration of King Charles, but his grandchildren, Prince George, Princess Charlotte and Prince Louis, are always a highlight of the event.

George, who is second in the line of succession to the throne, was spotted telling his little brother to "stop" waving when he realized no one else was doing so.