On Wednesday, the King and Queen, the Duke of Rothesay, and the Duke and Duchess of Edinburgh attended the Thistle Service during Holyrood Week. During the service, the Queen and the Duke of Edinburgh were installed to the Order of the Thistle.

The Duchess of Edinburgh wore her Suzannah dress with her Prada pumps. She paired the outfit with her Jane Taylor hat and her G. Collins & Sons earrings.