1The Duchess of Cambridge and Prince William
PA ImagesThe Duchess of Cambridge and Prince William announce their engagement in November 2010. Middleton wore a blue Issa dress which sold out following their announcement.
2The Duchess of Cambridge
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3The Duchess of Cambridge
PA ImagesThe Duchess of Cambridge attended her first ever Buckingham Palace garden party and wore a pale pink dress by Emilia Wickstead with a matching Jane Corbett hat.
4The Duchess of Cambridge
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5The Duchess of Cambridge and Prince William
PA ImagesThe Duchess of Cambridge, in green silk Diane Von Furstenberg dress, and Prince William attend a private reception at the British Consul-General's residence in Los Angeles last July.
6The Duchess of Cambridge
David Hartley/Rex Features Rex/ShutterstockThe Duchess of Cambridge chats to a friend at a charity polo match last month wearing a £290 Libelula teal petal print frock teamed with a pair of wedges.
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7The Duchess of Cambridge
PA ImagesThe Duchess of Cambridge and Prince William celebrated the countdown to the 2012 Olympics at Our Greatest Team Rises gala dinner at the Royal Albert Hall. The Duchess wore a teal Jenny Packham gown and pair of silver Jimmy Choos.
8Prince William and the Duchess of Cambridge
Rex/ShutterstockPrince William and the Duchess of Cambridge attend the BAFTA 'Brits To Watch' event on Los Angeles. The Duchess wore a hand-painted chinoiserie silk dress by Jenny Packham.
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9The Duchess of Cambridge
PA Images 10The Duchess of Cambridge
PA ImagesThe Duchess of Cambridge wears a silver Grecian-style gown by designer Jenny Packham as she attends the National Memorial Arboretum Appeal at St James's Palace, London.
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11The Duchess of Cambridge
PA ImagesThe Duchess of Cambridge arrives at Zara Philips
wedding to Mike Tindall in a cream embroidered coat and over-sized hat which she also wore to Laura Parker Bowles wedding in 2006.
12Prince William, the Duchess of Cambridge and Prince Harry
PA ImagesPrince William, the Duchess of Cambridge and Prince Harry
arrive at The Sun Military Awards last December, with the Duchess looking elegant in a £4,000 simple black strapless dress by Alexander McQueen.
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13Kate Middleton
David Hartley/Rupert Hartley/Rex Features Rex/ShutterstockThe Duchess of Cambridge was greeted by the England squad as they opened the National Football Centre in Burton-upon-Trent.
14Kate Middleton
PA ImagesThe Duchess of Cambridge hugs a young fan in Newcastle.
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15Prince William and the Duchess of Cambridge
PA ImagesDuchess of Cambridge wears a red-wine coloured suit by French designer Paule Ka as she joins Prince William on an official engagment at the Middle Temple Treasury in London.
16Duchess of Cambridge
PA ImagesThe Duchess of Cambridge wears a green Mulberry dress and debuts her 70s-inspired hair style at the Natural History Museum.
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17The Duchess of Cambridge
PA ImagesA windswept Duchess of Cambridge wore a cream MaxMara coat as she attends an official vsisit to Cambridge with Prince William.
18The Duchess of Cambridge
PA ImagesThe Duchess of Cambridge wears a tartan Alexander McQueen coat as she visits her old school in Berkshire.
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19The Duchess of Cambridge wears a tartan coat
PA ImagesThe Duchess of Cambridge receives flowers from well wishers during her official visit to Cambridge.

Naomi Gordon is news writer mainly covering entertainment news with a focus on celebrity interviews and television.
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