Benedict Cumberbatch, Cara Delevingne and Emma Watson at Prince Williams royal fundraiser

Subscribe to TheShowbiz411 Benedict Cumberbatch, Cara Delevingne and Emma Watson joined Prince William at Windsor Castle on Tuesday night for a charity fundraiser. The Duke of Cambridge wanted to honour the Royal Marsden Hospital, who he is president for. Fashion designer Ralph Lauren pledged a hefty sum to help fund a new breast cancer research centre at the hospital which has been named in his honour. Report by Lindsay Brown. Like us on Facebook: