Lady Colin Campbell is going to share the "deep conversations" she had with Princess Diana in a new play about the late royal.
The author - who was married to Lord Colin Campbell in 1974, Queen Elizabeth's cousin, for just 14 months - admitted she is planning on getting the production staged to "coincide" with the wedding of Diana's son Prince Harry and his fiancee Meghan Markle on May 19.
The 68-year-old writer has teamed up with director Dick Douglass - who she worked on 'Hamlet' with previously - and he's hoping it's going to be a hit on the West End, after its initial opening at the socialite's Castle Goring mansion in West Sussex.
Speaking about her plans to the MailOnline, Lady Campbell - who has decided to cast someone else has herself in the production - said: "Last year with the Accession anniversary, there were lots of royal TV documentaries and things that had very little genuine information we hadn't heard before.
"My play will be based on actual conversations I had with her and it will specifically be timed to coincide with the royal wedding. The play will have new insights -- there is even somebody playing me.
And Douglass added: "I'm hopeful after an opening at the castle it will transfer to the West End."
The former 'I'm A Celebrity... Get Me Out Of Here' contestant has warned that it will be "hard-hitting", but she doesn't think Harry, 33, will "mind" her exposing the conversations, which she chose not to publish in her book 'Diana in Private: The Princess Nobody Knows' in 1992, which was published five years before the Princess of Wales - who also had Prince William with ex-husband Prince Charles - was killed in a car crash in Paris.
She said: "I was left with some deep conversations that never made it into the book -- which I have used as a basis of the play.
"It is hard-hitting because the rawnesss of her words will show she was not so much a sacrificial lamb as she depicted. I don't think Prince Harry will mind."
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