The reported dispute centers on a Harper Beckham birthday celebration in 2017 that David and Victoria Beckham reportedly held at Buckingham Palace. According to claims in a new book, the event triggers a strong reaction from King Charles, described by the outlets as leaving him “seismic with rage.”

Both reports link the backlash specifically to the Beckhams’ choice of venue and the circumstances of the party at Buckingham Palace. However, the two outlets present the same core allegation through different phrasing, without providing additional verified details such as who attended, what specifically prompted the anger, or whether any official response occurs.

The Mirror and the Daily Express frame the story as an extraordinary royal backlash and attribute the account to the book’s reporting. The exact nature of the King’s grievance, the level of involvement by palace officials, and any subsequent consequences are not detailed further in the provided summaries.