• Princess Diana's funeral went ahead in 1997
  • Her ex-husband Charles was involved in the planning
  • The King is said to regret that his sons were in the procession

25 years and counting have passed since the death of Princess Diana. In 1997, the Princess of Wales died after a tragic car accident

Shortly thereafter, her funeral and memorial service took place. They were broadcast around the world. But today King Charles is said to regret a decision he made back then.

Charles regrets William and Harry's role in Diana's funeral 

Royal biographer Christopher Andersen told Us Weekly that Charles no longer approves of the decision to have William and Harry walk behind Diana's coffin. 

"I think it haunts him because it haunts them, and they've spoken about it," the insider said. In fact, the two brothers have stated that it was arguably the worst walk of their lives.

Also interesting:

Today, Charles is said to especially regret that the grieving boys were watched by millions of people at the funeral procession:

"I think both William and Harry thought, 'Who are these strangers who never met her?' So they were angry about what had happened.

"And Charles, I think, understands that to some extent he was responsible for them having to suffer through."

In addition to Charles, William, and Harry, Diana's brother Charles Spencer and Prince Philip also walked behind the coffin at the time. 

At the funerals of Philip and then Queen Elizabeth II, the two brothers took the heavy walk again about a quarter of a century later...

See more in the video above.