Prince Harry has reassured two children that the pain they feel after their mother's death "will get better" after she was hit by a cyclist and killed in east London.
He consoled 11-year-old Emily and 13-year-old Isaac Briggs after meeting them during half time of the Army v Navy rugby clash at Twickenham.
Their mother Kim, a 44-year-old HR consultant, had been on a lunch break when she was hit by a cyclist in Old Street, east London, on February 12 last year.
The mother-of-two from Lewisham, who was a pedestrian when she was struck, died in hospital six days later.
Emily told the Press Association it was "really nice" to meet Harry, adding: "He just told us everything will be OK, even though everything seems really bad at the moment, it will get better."
Her brother Isaac said the royal made them feel very relaxed during the encounter and described him as a "normal guy".
"We talked about the cadets, we talked about rugby, about losing parents."
Referring to the tragic death of Prince Harry's mother, Princess Diana, he added: "He was the same age I was and (it happened) in kind of a similar way."
Emily added: "It's nice to know that you can get really good things happen to you, even if something bad has happened - you can still have really good times."
Their father, Matt Briggs, said a friend of a friend put them in touch with Harry who then invited them to watch the Army v Navy clash.
"I was touched because he put thought into this invitation because my son plays rugby and is in the cadets, so it's a combination of the two things," he added.
"I think especially for them (the children), they know his story," Mr Briggs said, revealing that he stood back to allow his offspring to talk to Harry alone.
"Your grief as a husband is different to grief as a child, I just wanted to stand back and let them have that moment. It was a very, very special moment," he added.
Following Kim's death, Mr Briggs described her as a "wonderful and much loved woman who lived her life to the full and brought warmth to everyone she met".
He told the Standard at the time: “She bought a sense of fun to every occasion and we are devastated by this loss.
“We were very lucky to have had such a wonderful woman in our lives and her loss is greatly felt. She will be so dearly missed by all her many friends and family.”
Harry attended the clash on Saturday between the senior teams of the services in his role as patron of the Invictus Games Foundation, which is the official charity for this year's game.
Mr Briggs and his children sat with former Invictus Games competitors and those vying for a place on the team. He said: "The stories you hear are just so inspiring and just the people you chat to.
"For people to rebuild their lives and get back out there and do these amazing things is brilliant, absolutely brilliant."