Donald Trump's Remark About Kate Sparked 'Profanity' From William, Harry

King Charles III thought Donald Trump was "detached from reality" and asked American friends if he would be impeached, according to a new royal biography.

The former U.S. president sparked "torrents of profanity" from Charles, Prince William and Prince Harry after he said that Kate Middleton had "only herself to blame" for topless photographs taken without her consent and published in French magazine Closer.

Trump also left Charles "disappointed" after referring to him as the "Prince of Whales," spelled like the sea mammals, rather than the "Prince of Wales," author Christopher Andersen wrote in The King: The Life of Charles III. Trump suggesting that he "could have nailed" Princess Diana, if he had wanted to, also "didn't help."

Newsweek reached out to Trump's office and Buckingham Palace for comment.

An advance copy of The King, seen by Newsweek, reads: "It didn't help that Trump had aggressively pursued Princess Diana after her divorce—overtures that were rebuffed—and claimed later on a radio program that he could have 'nailed her if I wanted to,' but only if she passed an HIV test."

What did Donald Trump say about Kate Middleton?

Kate was photographed sunbathing topless on the private grounds of a French chateau in 2012 with the pictures published in the French magazine Closer.

"Kate Middleton is great – but she shouldn't be sunbathing in the nude – only herself to blame," Trump tweeted at the time. "Who wouldn't take Kate's picture and make lots of money if she does the nude sunbathing thing. Come on Kate!"

Andersen wrote: "Trump's criticism of Kate resulted in what one Clarence House butler referred to as 'torrents of profanity' from both Prince Charles and his sons."

Tensions rose to the point that, Andersen wrote, the royals tried to "discourage" a planned visit by Trump to Britain in 2017. The visit ultimately did not go ahead.

In 2017, Trump said there were "very fine people on both sides" at what Andersen described as "a white nationalist rally in Charlottesville, Virginia."

Charles, William and Harry "burned up the phone lines between Clarence House and Kensington Palace, with all three princes agreeing to work behind the scenes to discourage Trump's visit," according to Andersen.

"Throughout 2017 and into 2018, Britons seemed nearly as fascinated with the tweet-storming Trump as their American cousins. The royal family was no exception," Andersen wrote. "At every opportunity, including Prince Harry's wedding reception, Charles took his wealthy and influential American friends aside and gently prodded them for information.

"It was important that he not push too hard or too far; some of the donors to his charities, including those with the deepest pockets, were Trump supporters," he continued.

"Still, when lent a receptive ear, Charles asked on several occasions how likely it was that President Trump would be impeached. 'Trump seems to be detached from reality, doesn't he?' he asked a former Washington official who now headed up a major US conglomerate. 'What a ghastly, awful man.'"

Trump later tweeted in 2018: "Reason I canceled my trip to London is that I am not a big fan of the Obama Administration having sold perhaps the best located and finest embassy in London for 'peanuts,' only to build a new one in an off location for 1.2 billion dollars. Bad deal. Wanted me to cut ribbon-NO!"

Camilla, now the Queen Consort, told an American friend she "couldn't stop laughing" when Trump referred to Charles as the "Prince of Whales" in a Tweet but added that Charles found it "more disappointing than funny. I think he just felt as if he'd been wasting all that time talking to the man," Andersen wrote.