Sex tapes are alleged to have been taken of Prince Andrew, Bill Clinton and Sir Richard Branson by Jeffrey Epstein, court documents have revealed.
Sarah Ransome, who says she was a victim of Epstein, wrote about claims that the Duke of York, the ex-US president and billionaire businessman were filmed by the paedophile US financier.
A firm representing Epstein's lawyer, Alan Dershowitz, highlighted the allegations to demonstrate Ms Ransome "manifestly lacks credibility".
Ms Ransome gave a victim impact statement ahead of British socialite Ghislaine Maxwell being sentenced for sex-trafficking.
Andrew has strenuously denied any wrongdoing.
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On behalf of Sir Richard, a Virgin Group spokeswoman said: "In a New Yorker report published in 2019, Ransome admitted that she had 'invented' the tapes.
"We can confirm that Sarah Ransome's claims are baseless and unfounded."
Mr Clinton's representatives have not commented after being approached by Sky News.
Ms Ransome also alleged in the email extracts that former US president Donald Trump had sexual relations with "many girls".
"I also know she [a friend of Ms Ransome] had sexual relations with Trump at Jeffrey's NY mansion on regular occasions," the alleged Epstein victim wrote.
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The duke stepped down from public life and no longer uses his HRH title after the controversy over his friendship with Epstein.
The prince paid millions of pounds to settle a civil case with Virginia Giuffre, who accused him of sexually assaulting her when she was 17. He claimed he never met Ms Giuffre.
A US judge ordered hundreds of documents to be unsealed as part of Ms Giuffre's previously settled civil claim against Maxwell, which was filed in 2015.
Ms Ransome wrote: "When my friend had sexual intercourse with Clinton, Prince Andrew and Richard Branson, sex tapes were in fact filmed on each separate occasion by Jeffery.
"Thank God she managed to get a hold of some footage of the filmed sex tapes, which clearly identify the faces of Clinton, Prince Andrew and Branson having sexual intercourse with her.
"Frustratingly enough Epstein was not seen in any of the footage but he was clever like that! After two hours of trying to convince my friend to come forward with me, I eventually managed to persuade her to send me some of the video footage which she kept, implicating all three men mentioned above."
"I personally can confirm that I have, with my own two eyes, seen the evidence of these sexual acts, which clearly identifies Bill Clinton, Prince Andrew, Richard Branson having sexual intercourse with my friend.
"When my friend eventually had the courage to speak out and went to the police in 2008 to report what had happened, nothing was done and she was utterly humiliated by the police department where she went to report what had happened with Epstein, Clinton, Branson and Prince Andrew."
In New York in June 2022, Maxwell was sentenced to 20 years in prison for helping Epstein sexually abuse teenage girls, in what a judge called a "horrific scheme" that inflicted "incalculable" harm on victims.
Maxwell has been detained since July 2020 despite attempts by her defence lawyers to get her released on bail. Her appeal is scheduled to be heard in November next year.
Epstein was found dead in his cell at a federal jail in Manhattan, New York, in August 2019 while he awaited trial on sex-trafficking charges. The death was ruled a suicide.