King Charles’ birthday celebration, Trooping the Color, brought the entire royal family together once again. While royal watchers missed the late Queen Elizabeth, Princess Charlotte paid a subtle tribute to her great-grandmother.

The matriarch wore a dazzling aquamarine coat dress with ivory lapels by Catherine Walker for the annual royal event in London. She accessorized the elegant look with a matching wide-brimmed hat by Juliette Botterill and Queen Elizabeth’s Bahrain Pearl Drop earrings.