Just five months before her tragic death in August 1997, Princess Diana was photographed by Mario Testino for Vanity Fair. 'Diana, Princess of Wales' by Mario Testino at Kensington Palace brings together some images from this last portrait sitting, displaying Diana in a state of relaxation and intimacy unlike any other. The selection of about seventy photographs includes many unseen images which, alongside previously published images, fill in the untold story of the shoot.