Prince Harry has spoken about his anguish as a child at the death of his mother, Princess Diana, and how her memory continues to inspire his charity work and private life.

“All I want to do is make my mother incredibly proud,” he tells People magazine, in an exclusive interview on its cover this week, “That’s all I’ve ever wanted to do.”

“When she died, there was a gaping hole, not just for us but also for a huge amount of people across the world,” Harry, who is due to play a charity polo match in Palm Beach, Florida, on Wednesday afternoon, told the mag, in an interview to promote the Invictus Games. “If I can try and fill a very small part of that, then job done,” he says. “I will have to, in a good way, spend the rest of my life trying to fill that void as much as possible. And so will William.”

“I know I’ve got a lot of my mother in me. I am doing a lot of things that she would probably do.”

Harry, who recently revealed he still suffers combat flashbacks, also offered his thoughts on fatherhood: according to a preview available on the People website, he wants kids, but there’s “no rush.”

Meanwhile, in other breaking royal news: Kate Middleton, in a conversation with kids while on an official engagement, revealed that her kids have a pet hamster.

It’s called Marvin.