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Prince Harry announced the release date for his memoir Spare and RadarOnline.com has learned his father King Charles is furious with his son moving forward with the project.

An insider said, “Charles is shutting out Prince Harry” due to the January release. As RadarOnline.com previously reported, sources said the two had been attempting to work out things but the memoir was a big sticking point for the two.

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Due to Harry deciding not to scrap his $20 million memoir, sources said Charles started to retaliate behind the scenes.

First thing on the chopping block: Harry’s role as one of Charles’ five “counselors of state” tapped to stand in for the King should illness or overseas travel preclude the 73-year-old from carrying out important constitutional duties, including signing documents and attending Privy Council meetings.

With the new monarch, who ascended to the throne after the Sept. 8 death of his mother, Queen Elizabeth III, vowing to streamline the monarchy, sources reveal the nonworking royals such as Harry are on their way out.

Related video: Prince Harry Book Update & King Charles III Feels Betrayed For This Reason? | Royally Us

“Charles thinks it makes no sense whatsoever to have Prince Harry as one of his five counselors of state when he’s never in the U.K.,” said an insider.

“After being thrown under the bus by his son and Meghan with their tell-alls, he feels it’s important for the five who are the most loyal and dedicated to the Palace to have those spots.

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He’s not the only one who shares this opinion. On Oct 26, the BBC reported that a member of the House of Lords questioned why Harry and his uncle Prince Andrew were still considered suitable stand-ins for Charles when one had “left the country” and the other had “left public life.”

The priority, said another, should be given to “somebody who actually undertakes royal duties.” It’s not the first time Charles has sidelined Harry.

At Queen Elizabeth’s funeral, neither was allowed to wear their military uniform.

Even more shocking — there are rumblings that Harry and Meghan will not be invited to Charles’ May 6 coronation — which falls on their son Archie’s 4th birthday.

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After his and Meghan’s bombshell TV interview, plus buzz about Spare and their upcoming Netflix documentary, the Duke of Sussex saw it coming.

“Harry had an inkling his dad would leave him out in the cold when he became King,” said an insider. “So it has come as no surprise that discussions are taking place to have his pushed out."