She sought fame on TV, made wild claims about Princess Diana having an eating disorder, and now Lady Colin Campbell is going after The Queen in a salacious new book about Her Majesty's sex life.
Royalists have jumped to the defence of The Queen and Prince Philip as it emerges the fame-seeking Lady is making outrageous claims about their sex life.
The former I'm a Celebrity contestant has penned a sensational book which gives, what she claims, is a window into the bedroom of Her Majesty and her husband, reports Daily Mail.
Lady Campbell claims the Queen has a 'healthy' sex drive while Prince Philip is a flirt.
However, the lurid suggestions in The Queen's Marriage have been branded "tawdry", "made up" and unworthy of public discussion.
Ex-royal butler Paul Burrell told The Mirror: "Anyone can make up these claims. You can only be a true, reliable witness to history if you are there. Lady Colin Campbell was none of those things. She is writing about our Head of State, our Head of Church and someone who she does not know. She is writing about someone who she is not familiar with.
"I stood beside her and lived with her for 11 years and I can tell you who the Queen is. She is a good, kind Christian lady and she should not be defiled in this way because she is above that."
"She has earned our respect as a nation and things like that should not be written."
He was backed by Former BBC Royal Correspondent Jennie Bond.
She said: "I don't see any need to discuss the Queen's love life and marriage.
"It's distasteful, unnecessary and tawdry."
Lady Colin Campbell, the former wife of the Duke of Argyll's son Lord Colin Campbell, also makes claims about the Royal wedding night.
The 68-year-old implies in 1947 the pair had a night to remember because even the servants were discussing it.
The writer, who penned a highly offensive book claiming Princess Diana had bulimia, said Prince Philip likes women, but insisted there was no foul play on his part.
She wrote: "From childhood until the present time, he has surrounded himself with attractive, preferably adoring, women. He is raunchy, he is a naval officer."
However, she claimed Princess Margaret once said Philip had had an affair to upset her sister.
She wrote: "He loves the company of beautiful women. He's a huge flirt. I don't know any pretty girl he hasn't flirted with. He's flirted with me before. He's never said anything untoward, he's just flirtatious. The sort of thing he says is, 'You're looking good tonight', but he is a flirt.
"The Queen didn't mind at all. She gave him free rein to have Cavalier Servente — where you have friendships with the opposite sex, which are very close. To Philip they were like pets, they were his playthings. He even called them his playmates, they shared physical activities like carriage driving, and interests. It is a constructive way of keeping him occupied and entertained."
Although the writer uses the Queen's family nickname Lilibet, she is not close to Royals, experts said.
Commentator and author Judy Wade told The Sun: "I have never seen Lady Colin Campbell with a member of the Royal Family, or on a job about the Royal Family. You can say whatever you like about the Queen because she won't sue, but it doesn't mean it is true."
Lady Campbell defended herself and suggested she is honest.
She said: "They know I am honest and they've known about this book for a while.
"What I have written stands the test of time and if it's going to come out it may as well come out through somebody who is even-handed and balanced, and has no anti-Monarchist agenda."
The Queen's former press secretary, Dickie Arbiter, said: "I will not dignify anything Lady Colin Campbell writes or says with a comment."