Prime Minister David Cameron and his wife Samantha attended, as did rival Labour politicians Ed and David Milliband (they’re brothers and both competing to lead the Party). Peter Rice, head of Fox Broadcasting, was there, as was son-in-law Matthew Freud and daughter Elizabeth. Not many celebrities apart from comedian James Corden and TV presenters Jeremy Clarkson and Mariella Frostrup. This year’s event was held in the Orangery at Kensington Palace, Princess Diana’s old home.