A new biography about Prince Harry, which says Queen Camilla had allegedly remarked he had been brainwashed by his wife Meghan, was ​described by his spokesperson on Saturday as a “deranged conspiracy”.

Harry and Meghan ‌have been estranged from the British royal family since stepping away from official duties in 2020 and moving to California, but continue to attract huge interest both ​in Britain and abroad.

In extracts from his new book published in ​the Times newspaper, author Tom Bower, who has written a ⁠number of biographies about the royals, said the couple began feuding ​with the other royals shortly after their glittering 2018 wedding.

The couple, the Duke ​and Duchess of Sussex, are now barely on speaking terms with the other royals, and Harry has rarely seen his father, King Charles, in recent years.

Bower wrote that ​Harry’s elder brother William and his wife Kate were alarmed by ​Meghan’s impact on him and regarded her as a threat.

“Meghan’s brainwashed Harry,” Camilla, the prince’s ‌stepmother, ⁠told a friend, according to the author.

According to the extracts, Harry was also shocked by the fall from grace of his uncle Andrew Mountbatten-Windsor, who had lost all his titles and been ejected from his home over ​his links to ​the late convicted ⁠US sex offender Jeffrey Epstein, and feared his brother would likewise effectively banish him.

In an unusually strong response, ​a spokesperson for Harry and Meghan said Bower’s commentary ​had “long crossed ⁠the line from criticism into fixation.”

“Those interested in facts will look elsewhere; those seeking deranged conspiracy and melodrama know exactly where to find him,” the ⁠spokesperson said ​in a statement.

Buckingham Palace declined to comment ​on behalf of King Charles and Queen Camilla.

There was no immediate comment from representatives ​of Prince William and Kate.