The royal family may take action against Prince Harry and Meghan Markle after the Duke of Sussex's explosive claims in his controversial memoir, "Spare." As many clamor for removing the two's royal titles, it may soon happen if King Charles III follows the late Queen Elizabeth II's "decisive action."

Royal author Christopher Andersen claimed Queen Elizabeth never thought twice about removing Prince Harry's military titles after the infamous Megxit. Hence, he believed King Charles could do the same, taking "decisive action" against his son and his wife, Meghan.

He told Us Weekly that nothing could shake Her Majesty, keeping her calm and carrying on, but she would've taken some action against her grandson like what she did with the late Princess Diana. He believed the Queen started all this, like when she didn't allow the Sussexes' request to be part-time royals.

Andersen continued that Queen Elizabeth could have let that happen, giving them all the accommodation they wanted, but she never did. She allegedly chose not to do that because they should be either "all the way" in or out.

Hence, she had no qualms about removing Prince Harry's military and ceremonial ranks, which was a devastating blow to him. That said, he thought King Charles could channel the same strength as his mother and do "something decisive" so that he could finally put these scandals behind him.

Though Andersen wasn't sure if the monarch would do it before his coronation in May, he must do it at some point.

Per Express, this claim comes from Prince Harry's revelation that he has enough material to make two books. However, he chose not to do so, thinking his father and brother, Prince William, would "never forgive" him.

For starters, "Spare" has become the fastest-selling non-fiction book after its publication on January 10. Amid the many revelations that he made, like the Prince of Wales physically attacking him and King Charles put his own interests about his youngest son and was jealous of him and his eldest child.

With these revelations, journalist Daniela Elser believed Prince William and Kate Middleton "missed a trick" to dispel the characterization of the royal family that Prince William painted about them in his book when they didn't attend Constantine II's funeral. The royal commentator suggested they should have mingled with other European royals.

She saw the funeral as a "golden PR opportunity." She continued that Prince William and Kate Middleton would have reminded everyone how they do a "cracking job" representing the U.K. abroad amid Prince Harry's negative claims about them.