Award-winning historian Andrew Roberts tells the compelling story of the House of Windsor, Britain’s royal dynasty. He traces the history of  its four monarchs  through two cataclysmic world wars, the Abdication Crisis, three Coronations,  and the tragic death of Princess Diana,  right up to the wedding of Prince William of Wales to Kate Middleton, for which Roberts is NBC’s royal commentator.  Dr Roberts is well-known to transatlantic audiences for his authoritative commentaries of the funerals of Princess Diana and the Queen Mother, and the weddings of Prince Charles and Prince Edward.