*****File Photo*** Catherine, Duchess of Cambridge aka Kate Middleton turns 31 on 9th January. It has been a busy year for the future Queen, attending events for the London 2012 Olympics and participating in the Queen's global tour to celebrate her Diamond Jubilee. 2013 looks to be just as eventful for the Duchess as she is due to give birth to her first child in the summer ** HRH Queen Elizabeth II and Catherine Duchess of Cambridge, aka Kate Middleton at Leicester City centre on March 8, 2012. The Queen and members of the Royal family are visiting Leicester as part of her Diamond Jubilee Tour Leicester, England - 08.03.12 Where: Leicester, United Kingdom When: 08 Mar 2012 Credit: WENN