She attended alongside her husband, Prince William, and their three children: Prince George, 12, Princess Charlotte, 10, and Prince Louis, seven.

At 43, the Princess has firmly established herself as one of the most influential figures in modern royal fashion. Her consistent support of British designers, confident use of colour and pattern, and preference for timeless silhouettes have made her a true style inspiration.

A Tartan Look With Meaning

Unsurprisingly, she drew widespread admiration on Christmas Day in a rich brown tartan coat: the BLAZÉ MILANO Lahloo Anyway midi coat, a piece she has worn on four previous occasions. She paired it with a chocolate brown fascinator featuring a snowflake detail from Juliette Millinery, a brown and beige silk scarf, and perfectly coordinated chocolate brown boots.