King Charles made the decision to remove Prince Harry and Meghan Markle from Frogmore Cottage following the publication of Harry's memoir "Spare." The King was particularly angered by comments Prince Harry made about Queen Camilla within the book. Sources suggest that King Charles viewed Harry's criticisms of Camilla, including describing her as a "wicked stepmother" and "the Other Woman," as a significant act of disrespect that crossed a personal red line.
The memoir contained over 60 mentions of Camilla, and Harry did not conceal his negative portrayal of her. Advisors briefed the King on the contents of the book, which also detailed alleged physical altercations with Prince William and revelations about Harry's personal life.
However, the attacks on Queen Camilla were reportedly the most contentious issue for King Charles, prompting him to take swift action to evict the couple from their royal residence in January 2023.