King Charles III Last Straw: Monarch Could Ban Prince Harry From Important Event When He Does THIS

King Charles III is not taking any chances when it comes to his son, Prince Harry.

If the Duke of Sussex attacks Queen Consort Camilla in his impending controversial biography, the incoming king has allegedly pledged to bar him from his coronation next year.

According to Page Six, King Charles III is still concerned about his son, who may have his sights set on Camilla in his upcoming book, which is slated to be released next year.

King Charles III's coronation is slated for May 6, 2023. Though there is no formal publishing date for his son's biography, the future king is said to be anticipating at least one chapter to focus on Camilla.

An insider claimed that the king might withstand the insults from his son, but if Prince Harry forces him to choose by slamming the Queen Consort in his book, they believe King Charles III would pick his wife.

Another royal source stated that Prince Harry and his wife Meghan Markle are on a "tentative list" for the coronation, implying that the King is "leaving the door open to get the call" or be completely excluded.

Since he and the Duchess abandoned their royal responsibilities in 2020, the Duke of Sussex's book may irreversibly jeopardize his prospects of ever returning to the royal fold, especially in an official role.

READ ALSO: King Charles III Proves He Can't Be Overshadowed By Prince Harry, Meghan Markle After Major Decision

According to former Vanity Fair editor Tina Brown, Prince Harry's return to the UK in the aftermath of Queen Elizabeth II's death was a "great opportunity" to be utilized, as the Brits appreciated the sense of togetherness and having him and Prince William back together.

She did, however, caution that there can be no trust unless Prince Harry puts up his book and the tell-all interviews.

The book was meant to be released in November, but it has been pushed back until next year. According to current sources, the book might be released around Easter, giving the Duke additional time to incorporate details about his grandmother's death and funeral.

Regarding the book's delay, another royal author, Tom Bower, claimed that there would just be more information about how they were spurned and "the remainder of the venom against the royal family."

In July 2021, Prince Harry signed a $20 million deal with Penguin Random House.

READ MORE: Meghan Markle Still 'Acting' Despite Retirement? Why Royal Author Thinks So Revealed!