Prince William reportedly reacted angrily to a suggestion from King Charles III and Queen Camilla that Kate Middleton alter the spelling of her first name upon joining the royal family, according to a new biography. The claim, made in Christopher Andersen's book "Kate! The Courage, Grace, and Power of the Woman Who Will Be Queen," sheds light on behind-the-scenes tensions within the royal family over matters of protocol and image during Kate's early integration into royal life.

The concern reportedly stemmed from the royal cypher system: Charles and Camilla each held a royal monogram featuring interlocking Cs beneath a crown, and they worried that a third royal cypher beginning with "C" would be excessive. Andersen's book, which also credits Kate as the monarchy's "secret weapon" for her modern approach and "soft power", suggests William strongly resisted the proposed change on his wife's behalf.