This is what Kate wore to meet the Queen of Spain

(Image credit: Shutterstock/Rex)

Yesterday was a big day in the world of royal families: it was the Order of the Garter service, hosted by Queen Elizabeth at Windsor castle. For the occasion, Catherine, Duchess of Cambridge, was reunited with two equally stylish figures, Queen Maxima of the Netherlands and Queen Letizia of Spain.

All of them were supporting their husbands, who are now all members of the order. As a senior British royal, Prince William has been a member for a while, whilst King Willem-Alexander and King Felipe as Knights of the Garter are both Knights of the Garter.

The Queen honours senior officials who have served her or their country.

(Image credit: Shutterstock/Rex)

Whilst the men, and the Queen, wore tradition Order of the Garter robes, the female royals wore formal occasion wear.

Kate accidentally colour-coordinated with Queen Letizia, with both opting for creams and black.

The Duchess looked chic in a Catherine Walker coat dress with black piping and a pillar box hat, whilst Queen Letizia wore a white and great silk shift dress, with a black fascinator.

Meanwhile, Queen Maxima wore a powder pink ensemble, a colour which Camilla, Duchess of Cornwall, also opted for.

Penny Goldstone

Penny Goldstone is the Digital Fashion Editor at Marie Claire, covering everything from catwalk trends to royal fashion and the latest high street and Instagram must-haves.

Penny grew up in France and studied languages and law at the Sorbonne Nouvelle University in Paris before moving to the UK for her MA in multimedia journalism at Bournemouth University. She moved to the UK permanently and has never looked back (though she does go back regularly to stock up on cheese and wine).

Although she's always loved fashion - she used to create scrapbooks of her favourite trends and looks, including Sienna Miller and Kate Moss' boho phase - her first job was at MoneySavingExpert.com, sourcing the best deals for everything from restaurants to designer sales.

However she quit after two years to follow her true passion, fashion journalism, and after many years of internships and freelance stints at magazines including Red, Cosmopolitan, Stylist and Good Housekeeping, landed her dream job as the Digital Fashion Editor at Marie Claire UK.

Her favourite part of the job is discovering new brands and meeting designers, and travelling the world to attend events and fashion shows. Seeing her first Chanel runway IRL at Paris Fashion Week was a true pinch-me moment.