A new royal biography claims Prince William’s long-standing animosity toward his uncle, Andrew Mountbatten Windsor, stems from an undisclosed “rude” comment Andrew allegedly made about the Princess of Wales, Kate Middleton.

In The rise and fall of the Yorksauthor Andrew Lownie writes that the Prince of Wales fully supported King Charles III’s decision to strip Andrew of his royal titles because of his links to convicted sex offender Jeffrey Epstein. Citing palace sources, Lownie claims that William “hates” Andrew and his ex-wife, Sarah Ferguson, and would have acted even more decisively if he had been king.

The book alleges that William was “furious” after he was unexpectedly photographed near his uncle at the Duchess of Kent’s funeral, as he strove to distance himself from Andrew. The future king reportedly believes that his father was too lenient and that Andrew and Ferguson have “undermined the image of the royal family”.

Although the alleged remark about Kate was not detailed, the book describes it as a turning point in William’s relationship with his uncle. The revelations come shortly after King Charles officially stripped Andrew’s titles and honors, ordering him to leave Royal Lodge and move to the Sandringham estate.
Andrew, 65, continues to deny all Epstein-related allegations and has since agreed to no longer use his royal titles. His daughters, Princess Béatrice and Princess Eugénie, will retain their titles according to royal protocol.
