It’s no secret that Prince William adores his late mother,Princess Diana.

So it comes as no surprise to learn that William has always been fiercely loyal to his mother.

Apparently, though, Camilla wasn’t the only romantic rival of Diana’s that William disliked.

Princess Diana smiling

The Carlings divorced in 1996, and Julia publicly blamed Diana for the split.

Apparently, William didn’t appreciate anyone speaking ill of his mother.

The Duke of Cambridge now has the same protectiveness for his wife, Kate Middleton.

Prince William and Princess Diana

So it’s important that they know who she was and that she existed."

Now, the Duke and Duchess of Cambridge are passing down those same lessons to their brood.

The Duke of Cambridge spoke about how his mother introduced him to the charity during its 40th-anniversary awards ceremony.

Prince William, Kate Middleton, Prince George & Princess Charlotte

Prince William