The Duchess of Cambridge joined the Queen in welcoming guests from overseas for the service to celebrate the new Supernumerary Knights of the Garter King Willem-Alexander and King Felipe. Mother-of-three Kate, 37, wore a Catherine Walker dress and a Lock & Co hat for the lavish occasion. The two men were lined by their wives Queen Maxima and Queen Letiza at Winsor Castle for the ceremony to follow the knighthoods from earlier today.
Queen Letizia of Spain looked her typical glam self in a stunning silver gown and black fathered hat and matching heels, while Maxima of the Netherlands looked gorgeous in a blush pink outfit.
The monarch, 93, wore a white gown for the Order itself.
Camilla was also pictured chatting outside the chapel.
The wife of Prince Charles looked elegant in pink Anna Valentine with a Philip Treacy hat.
The Queen wore an Angela Kelly dress beneath her robes.
Sophie, Countess of Wessex, looked lovely in a Suzannah dress and Jane Taylor hat as she chatted to Queen Letiza of Spain.
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