Want more lifestyle and celebrity news? Kate's husband William is the first of the Fab Four to have an event this Wednesday, on Kate's birthday.
For the occasion, Kate rewore a favorite blue Catherine Walker coat overtop a black and white polka-dot dress.
The Duchess of Cambridge, wearing a blue coat and hat, was given flowers by onlookers after the couple left the church.
Meanwhile, William sported a blue coat and trousers, white button-down shirt and red patterned tie.
VIDÉOS. Affrontements entre Gilets jaunes et forces de l’ordre à Paris
C'est cela la réalité du mouvement des " gilets jaunes " aujourd'hui. Il préfigure un Acte 8 du mouvement, appelant à tomber le gilet.
The Queen usually stays in her Sandringham estate in Norfolk, 100 miles north of London, over the winter holidays.
On the way in to church, William and Kate were all smiles as they greeted fans who had gathered. We hope she has a wonderful day with her loved ones.
Since Meghan officially joined the royal family in May, there has been a shakeup in its synergy - one that many believe was inevitable.