Kempton sent ransom notes saying that he would return the painting on condition that the government invested more in care for the elderly – he had long campaigned for pensioners to receive free television. What happened next became the stuff of legend. Only 50 years later did the full story emerge – Kempton had spun a web of lies. The only truth was that he was a good man, determined to change the world and save his marriage – how and why he used the Duke to achieve that is a wonderfully uplifting tale.