And Prince Harry said earlier this month: "My mother had just died, and I had to walk a long way behind her coffin, surrounded by thousands of people watching me while millions more did on television".
If#Princess Diana had not died nearly twenty years ago, she would have turned 56 years old on July 1.
Kate was also in attendance at the service, conducted by the Archbishop of Canterbury Justin Welby, as well as Prince Harry and members of Diana's family.
"I don't think any child should be asked to do that, under any circumstances".
With the 20th anniversary of her death approaching, both William, 35, and Harry, 32, have spoken publicly about the impact that losing their mother has had on lives.
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At the time of their mother's death following a vehicle accident in Paris, William was 15-years-old, and Harry was 12-years-old.
William and Harry have been candid in recalling the emotional distress they had gone through after the tragic death. "And I think it's important for people under 35 who probably won't remember her at all to remember that this was a special person and not just a handsome one".
"One thing I can always say about my mother is she smothered Harry and me in love".
According to CNN, as part of the ceremony, her sons Prince William and Prince Harry re-dedicated her final resting place at Althorp House. Her brother, Charles, will renovate the area and plant forget-me-nots and rhododendrons because they were her favorite flowers.
William and Harry, who were 15 and 12 years old when their mother died in a auto crash on in 1997, have marked the anniversary by commissioning a statue of Diana.
"Our mother touched so many lives". It is a celebration for an entire year as a remembrance of her kindness, compassion, and service to the world particularly when young people are involved. They are hoping the statue will remind everyone about her when they visit the palace.