The Duchess of Cambridge is so much more than just a member of the royal family – she’s a mother, a wife and a humanitarian. Oh, and did we mention style icon?

The “Kate Effect” (the phenomenon of clothing worn by the Duchess selling out within hours) is unlike anything we’ve ever seen before. In fact, Newsweek reports her influence “may be worth £1 billion [$1.8 billion] to the UK fashion industry.”

So today, as she celebrates her 36th birthday, we’re taking a look back at 10 of her most stunning outfits. Scroll through the gallery above to see our top picks and tell us in the comments, which is your favourite?