Diana Remembered - In a Memorial Service.

LONDON—Princess Diana's family solemnly marked the 10th anniversary of her death Friday, with her younger son eulogizing her as "the best mother in the world."

The bishop of London used his sermon at a memorial service to call for an end to the sniping between Diana's fans and detractors, and a priest who has led an annual remembrance said it may now be time to let go.

"To lose a parent so suddenly at such a young age, as others have experienced, is indescribably shocking and sad," Prince Harry said at the memorial service at the Guards' Chapel near Buckingham Palace.

"It was an event which changed our lives forever, as it must have done for everyone who lost someone that night," said Harry, who was 12 when Diana died.

"But what is far more important to us now and into the future is that we remember our mother as she would wish to be remembered, as she was: fun-loving, generous, down to earth and entirely genuine," he said.

Diana's admirers, many of them suspicious of the cause of her death and resentful of Prince Charles, tied bouquets, poems and portraits to the gates of her former home.

Friday was a day for broadcasting video snippets of her wedding and funeral, for rehashing the rights and wrongs of her failed marriage.

For Harry and his older brother, Prince William, it was a simple tribute to an adored mother.

"To us, just two loving children, she was quite simply the best mother in the world," Harry said. "When she was alive, we completely took for granted her unrivaled love of life, laughter, fun and folly.

"She was our guardian, friend and protector," Harry said. "She never once allowed her unfaltering love for us to go unspoken or undemonstrated."

Harry and William were credited with organizing the noontime service, but Charles was blamed by many for the furor over an invitation to his current wife.

A poll commissioned by Channel 4 television in Britain found that 25 percent of the public

believes Diana was murdered, but 59 percent thought it was an accident. The telephone poll of 1,016 adults conducted this week had a margin of error of plus or minus 3 percentage points.

The royal family, which clearly was caught by surprise by a national tidal wave of grief 10 years ago, had refrained from any public remembrance of the anniversary of the princess' death.

This year, however, William and Harry took the lead in organizing the memorial service, as well as a rock concert on Diana's birthday, July 1, which drew 70,000 paying fans.