Kate Middleton has been the Princess of Wales for more than a decade now, but there is one aspect of the role that the royal still finds particularly challenging

Whenever Kate undertakes official royal engagements she is almost always all smiles, but a royal expert has claimed that there is hidden heartbreak underneath the Princess' polished appearance

As a member of the British royal family, the Princess of Wales has travelled the world on overseas tours, but a royal expert has claimed one aspect of these trips is particularly hard for Kate

Kate Middleton, when performing her official royal duties, is often seen as the epitome of perfection - especially with her kids. Her radiant smile and engaging conversations during her engagements give the impression that she's absolutely delighted to represent the crown.

The Duchess of Cambridge is known for her warm, engaging smile and always looking picture-perfect, but a royal expert has claimed she still finds one aspect of her duties very hard

A Channel 5 documentary has analysed Princess Kate and Prince William's 2010 engagement interview with ITV, with a body language expert suggesting that Kate was feeling 'nervous'