The Duke and Duchess of Cambridge were special guests Wednesday at a Child Bereavement UK center in Stratford, London, and Prince William shared a touching moment with a young girl grieving the death of her father.

"Do you know what happened to me?" the prince told Aoife, 9, who lost her father six years ago to pancreatic cancer. "You know I lost my mummy when I was very young too. I was [15] and my brother was 12. So we lost our mummy when we were young as well."

This year marks the 20th anniversary of Princess Diana's death.

Rosie O'Donnell Supports 'Martial Law' to Delay Trump's Inauguration

'You Alone Can Save Her Life': Snowden Urges Obama to Free Chelsea Manning

Now We Know Why Sasha Obama Skipped Dad's Farewell Address

Prince William, royal patron of Child Bereavement UK, told the girl that it's very important to continue to talk about her father.

"I couldn't believe it when he (Prince William) started to talk about his mother," Aoife's mother, Marie, said. "It was very emotional and I was willing myself not to start to cry. I almost did."

The prince encouraged all the children in attendance to create memory jars to remember their lost loved ones.

Tell us what you think about Prince's William's heartfelt conversation.

VIRAL: Can You Figure Out This First-Grade Math Problem?

Fmr Sen. Al D'Amato Kicked Off JetBlue Flight After Complaining About Service

MA Boy Hospitalized After Eating Marijuana Edible on School Bus