Kate has been wowing royal fans with her fashionable looks for over ten years. Although her style has change, there are a few designers she has stuck with over the past decade.
The Royal Family Channel on YouTube have analysed her favourite designers.
They reported: "The Duchess of Cambridge is famous for her impeccable style choices.
"The ultimate style ambassador, Kate's wardrobe is full of fashionable gems.
"Catherine has worn Alexander McQueen throughout her time as a Duchess.
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"Her most famous outfit from the brand was her wedding dress from 2011.
"Kate also wore the designer for Prince George's christening in 2013.
"Most recently she wore a coat from McQueen at the Remembrance Sunday service."
They added: "The Duchess is also known to be a fan of Emilia Wickstead.
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"Emilia even named one of her staple dresses after the Duchess.
"The Duchess is a known lover of glamour and elegance.
"She has been spotted in gorgeous gowns from Jenny Packham this year."
Kate is also known for her preference for affordbale, high street retailers.
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Over the years, the Duchess has been spotted in LK Bennett, Marks & Spencer, Topshop, Zara, Asos, Whistles and Boden.
She also shops in affordable retailers for her children's clothes.