A Richard Kay column reflects on Prince William and Prince Harry’s earlier public collaboration and looks ahead to the period approaching the 30th anniversary of Princess Diana’s death. It contrasts William’s and Harry’s public profiles and notes their prior appearance together to introduce a film they collaborated on about Diana.

The column focuses on a reported “solemn promise” William made to his mother before she died, framing the upcoming anniversary as a test of whether he fulfils that commitment. In this set of excerpts, the reporting perspective is interpretive rather than strictly factual, emphasizing symbolism and personal legacy rather than adding new verified details about events tied to the anniversary.

Because the provided material is limited and largely repeats the same outline across outlets, other aspects—such as specific actions, statements, or dates tied to any official commemoration plans—are not detailed here.