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.
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.