Sarah Ferguson wasn’t fond of two people in the royal family.

According to Andrew Lownie‘s book, Entitled: The Rise and Fall of the House of York, the mother of two was not a fan of Andrew Mountbatten-Windsor‘s father, Prince Philip, and his brother Prince Edward.

“Sarah talked endlessly about having messed up her relationship with [Princess] Diana and about her love of Queen Elizabeth II — she hated [Prince] Philip and [Prince] Edward — and her parents,” the author wrote about what a former assistant told him via Daily Express.

Prince Edward, Prince Philip and Queen Elizabeth II attend the Baton Relay for the XXI Commonwealth Games in 2017. By: James Whatling/MEGA

Prince Edward, Prince Philip and Queen Elizabeth II attend the Baton Relay for the XXI Commonwealth Games in 2017. By: James Whatling/MEGA

“The assistant was struck by her immaturity. She wanted to go back to childhood. She had this constant need to be wanted, with the result that she had no boundaries,” Lownie claimed.

According to royal historian Kenneth Rose, the former Duchess of York had a tense relationship with her ex-father-in-law.

After Sarah and Andrew’s separation, photos of her and millionaire John Bryan packing on the PDA were made public — much to the patriarch’s dismay.

“Fergie has both sides of her correspondence with Andrew: when he was away, she wrote to him every day. She also has the letters written to her by Queen Elizabeth II,” he wrote in his memoir,Who Loses, Who Wins: The Journals of Kenneth Rose: Volume Two 1979-2014. “She goes on: ‘I also have Prince Philip’s letters, telling me that I have let down The Firm.’”

Prince Philip, Queen Elizabeth II and Sarah Ferguson attend the Braemar Games in 1990. By: MEGA

Prince Philip, Queen Elizabeth II and Sarah Ferguson attend the Braemar Games in 1990. By: MEGA

“In one of them, he [Prince Philip] wrote that he had been reading a book about Edwina Mountbatten [Lord Mountbatten’s wife, notorious for having had many lovers, including, allegedly, Nehru, the first Prime Minister of India], and that my conduct reminded him of her [Ferguson],” Rose wrote.

Philip likely wouldn’t be thrilled with Sarah and his son losing their titles and being evicted from Royal Lodge over their friendship with Jeffrey Epstein.

A source told Daily Express that Ferguson has an “appetite for revenge” and is “not happy” with King Charles III for punishing her so harshly.

“She feels that she’s been thrown under the bus, that it was Andrew’s ill-advised relationship with the disgraced ex-financier and therefore, she’s got the record to set straight,” commentator Mark DolantoldSky News Australia.

Sarah Ferguson arrives at Global Citizen Now in 2024. By: MEGA

Sarah Ferguson arrives at Global Citizen Now in 2024. By: MEGA

“She needs the cash and it’s very possible that she will sign a million-dollar deal to spill the beans. The big problem is for Charles because this whole scandal threatens to taint his entire reign as monarch,” he added.