Louis Greig, a war hero and rugby international, entered the privileged world of the British royal family as mentor, physician and friend to a young and hesitant Prince Albert. Greig's influence helped to guide the prince from a stammering, shy schoolboy to become one of the most respected constitutional monarchs, seeing the nation through the Second World War and bringing the monarchy closer to the people. In this intimate and balanced portrayal of a friendship which lasted almost half a century, author Geordie Greig, the grandson of Louis Greig has drawn on private family papers, the Royal archives at Windsor Castle, libraries at Oxford and Cambridge and used newly discovered letters, journals and photographs for this remarkable, previously untold story.