King Charles resents Prince Harry for slamming Queen Camilla

King Charles is still fuming over Prince Harry’s remarks about his beloved wife, Queen Camilla.

Most of the royal family came out to celebrate Charles’ 75th birthday bash Tuesday — all except his estranged son, Harry.

Royal expert Christopher Andersen claimed that the monarch is still upset with the Duke of Sussex, 39, over the claims he made about Camilla in his memoir “Spare.”

“The King” author told Fox News: “My feeling is that Charles can so easily turn his back on Harry because Harry committed the one unforgivable sin: Harry dissed Camilla in his book, ‘Spare,’ branding her a ‘villain.’

“He could have trashed [Prince] William and the monarchy all he wanted, but King Charles is wildly, blindly devoted to Queen Camilla,” Andersen went on. “King Charles III angers easily, and he holds grudges.”

Harry and his wife, Meghan Markle, 42, were snubbed and did not receive a birthday invite.

“The fact that Harry and Meghan weren’t even invited to the king’s milestone 75th birthday really speaks volumes about just how irreconcilable the Sussexes and the Windsors are,” the writer explained. “You can only burn bridges so many times.”

In “Spare,” which was published in January, Harry revealed he “begged” his father not to marry Camilla and compared her to a “wicked stepmother.”

Harry also accused her of leaking private conversations to the media to save her reputation.

“I had complex feelings about gaining a stepparent who, I believed, had recently sacrificed me on her personal PR altar,” he wrote. “In a funny way, I even wanted Camilla to be happy. Maybe she’d be less dangerous if she was happy?”

He further spoke about her in an interview with CBS, claiming members of the Firm were “getting into bed with the devil” to earn positive media coverage.

“That made her dangerous because of the connections that she was forging with the British press,” Harry said of Camilla. “There was open willingness on both sides to trade information. And with a family built on hierarchy, and with her on the way to becoming queen consort, there was going to be people or bodies left in the street.”

Despite Charles’ alleged resentment toward his youngest son, the pair appear to be making recent efforts to rebuild their relationship — unlike Harry’s status with brother Prince William. One day after Charles’ birthday, royal author Omid Scobie revealed to People that they are not on speaking terms.

“A striking difference between Charles and William when it comes to their relationships with Harry is there is still a warmth with Harry and Charles,” Scobie said. “With Harry, there’s a reluctant acceptance that this is just who his father is.

“He would rather have that in his life than to cut it off completely. Hence, when they talk, it is often [Harry] reaching out,” he continued. “And I was surprised to learn that even Meghan [Markle] has some sort of correspondence with Charles, sending over photos of the children [Prince Archie, 4, and Princess Lilibet, 2], although they’re not directly to him. So there is a willingness there.”