It was a royal first for Catherine, Princess of Wales today! She publicly wore Dior for the very first time.

The Princess (aka Kate Middleton) and her husband, Prince William, were on hand to greet French President Emmanuel Macron and his wife Brigitte Macron as they arrived for a state visit on Tuesday (July 8) in Windsor, England. They are being hosted by King Charles and Queen Camilla, who were also there to greet them. The French couple will be staying at Windsor Castle, and this is the first State Visit made by France in 17 years.

If you can believe, the Princess has never worn Dior for a royal appearance. It was a brand that was favored by Meghan Markle, and she wore it during royal occasions.

FYI: The Princess is also wearing a Jess Collett hat and Queen Elizabeth II’s pearl choker and pearl drop earrings, according to Vogue.