Prince George is all grown up as he flashes a cheeky grin in brand new snaps taken by his mother, Kate Middleton. The Duke and Duchess of Cambridge's son is set to turn nine years old on July 22, and the third-in-line to the British throne has been seen more and and more recently on engagements with his parents. In the candid snap George looked like any other happy nine year old as he beamed into the camera, wearing a casual blue polo t-shirt whilst stood on the beach.