When Lady Diana Spencer first came under the glare of the media spotlight back in 1980, nobody could have foretold the impact she would have on the royal family. The youngest daughter of an earl, Diana did not fit the profile of a subversive. Young and pretty, she appeared an eminetly suitable consort for the future monarch. In reality over the next seventeen years Diana would shake the monachy to its very foundations. But how did the Queen first perceive Diana? And how did she react to the breakdown in her son's marriage and Diana's tragic death? Features exclusives. recently conducted interviews with Penny Junor, Nick Own, Sir Roy Strong, Ingrid Seward, Dickie Arbiter and Hugo Vickers