Kate Middleton had a Cinderella moment at Windsor Castle yesterday. At the Order of the Garter ceremony, the Duchess of Cambridge channeled the Disney princess with a pale blue silk-satin coatdress by Christopher Kane (above, left) that was last seen on her at the 2012 London Olympics opening ceremony (above, right). The fitted style was custom-made for the royal and features a covered placket down the front, slanted pockets, a self-belt, and peak lapels. To complete her look, Middleton donned a matching Lock and Co. fascinator, nude Jimmy Choo pumps, and an L.K. Bennett clutch.

While the Duchess didn’t walk in the official procession, she was there to support Prince William, who walked in the parade with his grandmother Queen Elizabeth II and his father Prince Charles. However, that didn’t stop the couple from sharing a sweet moment—at one point during the ceremony, William glanced over to Kate, which caused her to break out into a huge grin.

Want more of Kate Middleton’s polished style? Click through our gallery to see her most memorable outfits ever!