Kate Middleton received a title upgrade when she became the new Princess of Wales after King Charles became the monarch.
But one day she will receive an even bigger promotion when her husband Prince William, the heir to the throne, takes his place as King as she becomes queen, the Mirror reports.
Kate, whose birth name is Catherine, is likely to be known as Queen Catherine when this happens and it's also expected that Kate will make use of her platform to promote the causes and organisations that she holds close to her heart.
