Kate Middleton and Prince William shared a smile during Commonwealth Day services at Westminster Abbey on Monday, March 10.

It goes without saying that Westminster Abbey is a place that holds great meaning for the Prince and Princess of Wales: After all, Prince William and Kate Middleton tied the knot there in 2011. It’s also home to Kate’s annual “Together at Christmas” concert and where they toasted King Charles’s coronation—a moment that placed them next in line to the throne—back in 2023.

The Princess of Wales rewore a favorite dress of hers for the occasion, a stunning candy apple-red coatdress by Catherine Walker with a big, pretty bow adorning the collar and large buttons running down the front. It was the same piece that she wore to the carol service at Westminster Abbey in December of 2021.