Kate Middleton's fashion has transformed throughout her time as a royal. Here's a look at the Princess of Wales' outfits over the years.

While Prince William, 42, will ride on horseback in his role as honorary colonel of the Welsh Guards, Kate will ride in a carriage alongside their children. The day traditionally concludes with a flypast by the Royal Air Force watched by the royal family from the balcony of Buckingham Palace.

Kate is set to mark one year since her first public engagement following her cancer diagnosis with a moment of royal pageantry.

Princess Kate stunned with her latest appearance on Tuesday, but according to a top expert, there was one particular message she wanted to communicate.