VIDEO: PRINCES HARRY AND WILLIAM MARK 20TH ANNIVERSARY OF PRINCESS DIANA'S DEATH

It is difficult to believe that today marks 20 years since the tragic death of Princess Diana who died August 31, 1997. 

Princess Diana was loved by so many for being a "truly extraordinary woman" and, most importantly, an incredible mother to her sons – who were young when they lost her mother in the tragic car accident. 

Even 20 years later, Prince Harry and Prince William still feel the intense sadness at losing their mother, who they describe as being the kindest and most loving mum. 

In this video, we see the Princes paying tribute to the lost Princess Diana on the 20th anniversary of her death.

Many tributes have been paid this week in honour of Princess Diana.