Reports suggest Prince Harry's upcoming memoir Spare will address him losing his virginity "to a beautiful older woman in the countryside".
Speaking to the Sunday Times, the 57-year-old actress shut down speculation he is referring to her due to the fact she had lived in Gloucestershire where a number of royals own property.
When she was pressed on the issue Liz said, "Not me. Not guilty", before adding, "No. Not me. Absolutely not".
Prince Harry's memoir is due to be released on January 10 and promises "raw, unflinching honesty". It had already been topping Amazon charts back in October despite it being still three months from release.
The royals are bracing for more of Harry's "truth bombs" in the book and worry that Harry will go "fully rogue", which would spark "drastic" retaliation from King Charles.
Sources have told UK's Sunday Telegraph Harry wrote the book because he can't spend the rest of his life trying to please the royal family.
"You can't kind of always live your life trying to make your family or your siblings happy," one insider said.
"You have to choose your own happiness."
They added that the book will "take aim" at members of the royal family, including his father, with Harry addressing "genetic pain and suffering".
The release of his memoir will come just a month after Prince Harry and his wife Meghan Markle released their six-part tell-all docuseries on Netflix, addressing the reasons why they decided to step back as senior members of the royal family.
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