Le prince William, duc de Cambridge, Catherine Kate Middleton, la duchesse de Cambridge en visite à Caernarfon le 20 novembre 2015. The Duke and Duchess of Cambridge are in North Wales for a day of engagements. The majority of the visit will focus on work carried out by organisations to improve the mental wellbeing of young people. Here, they did a walkabout in Castle Square, Caernarfon, North Wales, UK.20/11/2015 - Caernarfon - Photo