Growing up during the eighties and nineties as a popular prince, His Royal Highness The Duke of Cambridge has evolved into his senior royal role with seamless confidence. In addition to his ceremonial duties, which include supporting his grandmother, Her Majesty The Queen, His Royal Highness works tirelessly to make an impact on progressive causes that remain close to his heart – whether it’s tackling the issue of climate change or the stigma attached to mental health issues. As a devoted husband to Her Royal Highness The Duchess of Cambridge and a loving father to their three young children, this year The Duke of Cambridge celebrates his milestone 40th birthday. Join The Royal Mint in marking the occasion with a special commemorative coin.