Happy 35th Birthday to the Duchess of Cambridge!Monday 9 January at 7:50amCatherine Middleton, The Duchess of Cambridge, celebrates her 35th birthday today.To celebrate her special day, we take a look back at some of her most memorable moments. Entering the public eye - Kate outside her London flat on her 25th birthdayKate in another early snap before her engagement to Prince William was announced Kate and William announced their engagement in 2010 with the blue sapphire and diamond ring that Prince Charles gave to Princess Diana in 1981Royal wedding fever gripped the world, with an estimated global audience of more than two billionThe Duchess of Cambridge is said to enjoy a great relationship with the QueenKate has proven time and time again how much she genuinely loves sportKate and William embrace at the London Olympics in 2012In 2016, she was voted the UK's most influential female style iconGlowing: Kate wowed the world when she appeared outside St Mary's Hospital in London with her first-born child GeorgeAnd she was back on the same steps when Charlotte was born in 2015The gorgeous family enjoy their first ski break in 2016