It's no surprise that many have drawn comparisons to the Princess of Wales and her daughter-in-law, Duchess Catherine.
Although they never met, they're both the two leading women in Prince William's life and as the palace confirm Duchess Catherine is in labour with her third child, there's no doubt Princess Diana will be looking down on them.
20 years after Diana's death, her legacy burns bright in her two sons, Prince William and Prince Harry - with the brothers carrying on their mother's inspiring philanthropic work.
But Diana's spirit is also touching the next generation of royals.
From what the public have seen so far, it's evident the Duchess of Cambridge shares the Princess of Wales' nurturing and maternal nature when it comes to her darling kids, Prince George and Princess Charlotte.
Scroll through to see Princess Diana and Duchess Catherine's precious parenting moments!