Kate Middleton has a scar from a 'childhood operation' visible on her head

Kate Middleton scar: How the Duchess of Cambridge got the mark on her head

Kate Middleton wears the Lover's Knot Tiara at the state banquet

Kate Middleton stuns in Princess Diana's tiara as she attends state banquet

Kate Middleton, Duchess of Cambridge

Will Kate Middleton be called Queen when Prince William becomes King?

Prince William and Kate Middleton hold hands at the royal wedding

Princess Eugenie wedding: Kate Middleton and Prince William enjoy rare public display of affection

Kate Middleton may be forced to miss Princess Eugenie's wedding

Why Kate Middleton may be forced to miss Princess Eugenie's wedding

Pippa and James

Pippa Middleton pregnant: Kate Middleton's sister's due date and baby details revealed

Kate Middleton's maternity leave is coming to an end.

Kate Middleton maternity leave: Duchess of Cambridge announces royal engagements