What Do Princess Diana's Grandchildren Call Her?

Now, as grown men with families of their own, both the Duke of Cambridge and the Duke of Sussex have honored their mother over the years in different ways.

Perhaps the biggest way is their philanthropy. They both actively work with various charities, just like Princess Diana did.

Early on, Diana inspired William and Harry to devote energy to helping people experiencing homelessness. She took her sons to shelters, which made a lifelong impact on them (via Time). William is currently interested in finding ways to transform land owned by the royals into homeless shelters (via Marie Claire).

Though you may have heard of the Duke of Sussex founding the Invictus Games, an international sporting event for wounded service members, one thing you may have never known about Harry is that, like his mother, he's very involved in helping children in Africa (via Harper's Bazaar). He co-founded Sentebale, an organization that assists vulnerable children in Lesotho.

"I wanted to work with kids who had lost one or both of their parents from HIV, to better understand my mother's work and see if there was a way to keep her legacy alive in the fight against AIDS," he said (via Sentebale).