Staff Writerhosted a dinner at Windsor Castle to celebrate the work of The Royal Marsden cancer centre. Celebrities and philanthropists filled the Windsor Castle for a charity dinner event. Prince William is the president of The Royal Marsden, which is the largest cancer center in Europe and known for research into prospective treatment. Some of the actors that attended were Helena Bonham-Carter, Emma Watson, and Benedict Cumberbatch. Models Kate Moss and Cara Delevingne were also present. Representatives from The Royal Marsden, Chairman Ian Molson and Chief Executive, Cally Palmer joined the celebrities at the event. However, the Duchess of Cambridge was absent. Before dinner the Duke said,"I am exceptionally proud to be president of The Royal Marsden, an incredible hospital and a world class cancer centre carrying out groundbreaking work, influencing the treatment of cancer, both nationally and internationally." Keep Up With PopWrapped On The Web!