Kate Middleton's 12 most impressive fascinators

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In a church service to mark Prince Philip’s 90th birthday, Kate donned a Philip Treacy chapeau, which perfectly matched her blue Brocade coat.

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She may have recycled the outfit she wore to Zara Phillips and Mike Tindall’s 2011 wedding, but Kate freshened up the ensemble by debuting an enormous structural headpiece designed by British milliner Gina Foster.

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The Duchess delighted Canadian fans when she attended Canada Day celebrations on Parliament Hill wearing a custom-made, maple-leaf fascinator.

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For the Calgary Stampede, Kate swapped her fascinator for a white cowboy hat in this western inspired getup.

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Prince William's wife charmed on St. Patrick’s Day 2012 in an emerald coat and a Lock & Co brown pillbox hat.

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Kate’s burgundy Jane Corbett designed headpiece stole headlines around the world after she sported the couture creation for her first official Royal Christmas Church Service in 2011.

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Kate was ravishing in a vivid red Sylvia Fletcher hat and Alexander McQueen dress for the Queen’s River Pageant celebration in 2012.

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Sporting a feminine, net-trimmed fascinator, the Duchess was demure and sophisticated while attending the Queen's Thanksgiving service at St Paul's Cathedral.