In a sartorial display of solidarity, Britain's Queen and future Queen both picked deep green winter coats with matching fascinators for the church service at the royals' Norfolk estate.
The main conceptual idea of the text is that Queen Camilla and Kate Middleton wore nearly identical outfits to the Christmas Day church service in Sandringham. The article focuses on the matching outfits as a notable detail of the public appearance. It's essentially celebrity fashion news with a royal twist.