Happy Birthday James Viscount Severn: Sophie Wessex's boy is adorable at six

It's been a good year for royal babies. But the older youngsters are also a source of joy within the family too - especially James Viscount Severn, the son of Sophie, Countess of Wessex and Prince Edward, who celebrates his sixth birthday on 17 December.

The little boy is a particular favourite with the Queen who revels in the company of her grandson and his sister Lady Louise Windsor. The monarch loves taking the children riding and often joins them at the Royal Windsor Horse Show.

Meanwhile, Sophie lights up whenever her son is around and is thoroughly enjoying every moment of his childhood.

To mark his special day, we've gathered some touching images of James with his proud parents. Click on the photo above to see a gallery of pictures.