Princess Diana 'Always Wanted a Girl' and Would 'Really, Really pag-ibig This Moment,' Says Friend 

More Food More Pets More Red Carpet More TV Watch More Unfiltered More Country

Duchess Catherine\'s Best Dressed Bump Moments

Will & Kate\'s Cutest Family Photos –So Far!

Meet the Odds-on Favorites to Be the Next Royal Godparents

Fans: Will the Royal Baby Be a Total Gryffindor?

7 Reasons Prince George Will Be the Best Big Brother Ever

Royal Baby Betting: Bookies Could Be Out $750,000 by Wednesday

Royally Awesome Spares, Sequels & Seconds That Are as Good as the Original

Princess Diana \'Always Wanted a Girl\' and Would \'Really, Really Love This Moment,\' Says Friend

From left: Princess Diana and Princess Charlotte

Every Photo of the New Royal Baby That Exists Right Now

Kissable, Squishable George: Every Face He Made While Meeting His Sister

Relive Princess Kate\'s Second Pregnancy in 90 Seconds

As the birth of Princess Charlotte is celebrated by the royal family – and the world – it\'s hard not to think of her late grandmother, Princess Diana, whose spirit now lives on in the new princess.

"Diana always wanted a girl, and she shared the joy of her colleagues and friends when their kids were born," Patrick Jephson, Diana\'s former private secretary, tells PEOPLE.

"Both my daughters were born when I was working with Princess Diana, and she more than once said how lucky I was to have girls," he adds.

The late Princess of Wales\' legacy also lives on thanks to her devoted sons.

"Both William and Harry have been very conscientious in keeping the story of their mother alive – most obviously through Kate\'s engagement ring – and her influence continues," Jephson says. "William and Harry frequently refer to her, and she is a continuing inspiration."

Jephson, Diana\'s onetime most senior aide, also recognizes the importance of the royal couple\'s decision to name their daughter after Will\'s late mother.

"I\'m sure it will prove an inspiration to the young princess as she grows up and comes to terms with her own royal duties, because her late grandmother\'s example would be very hard to beat," Jephson says.

"It can only be good for the standing of the royal family to find the Diana story continuing and the Diana name being honored, because she remains a figure of worldwide respect and affection," he adds.

Diana\'s former bodyguard, Ken Wharfe, tells PEOPLE, Diana "would really, really love this moment."

As for the new princess\' name, he says, "Politically, he was never going to call her by the first name Diana, but it had to be in there."

"It\'s a nice way of saying you can\'t airbrush my mother out of royal history," he adds. "I\'m sure there are some quarters of the family that wish it to be quiet, but William has led the field in making sure that his mother is still remembered. It was a poignant thing to do."

Royal Baby Timeline: Everything You Need to Know about the New Princess\' Birth Date

• All About the 6 Essential Women in Princess Kate\'s Life

• Protective or Bossy – What Kind of Big Brother Will Prince George Be?

• All About Princess Kate\'s New Baby Nursery – Including Royal Hand-Me-Downs

• More Royal Babies on the Way? Princess Kate Wants 2 More Children

• 9 Tips for Princess Kate on Raising Two Kids Under 2, from @CrazyJewishMom

• Seven Reasons Prince George Will Be the Best Big Brother Ever

• Will & Kate\'s Cutest Family Photos – So Far!

Watch Sofia Vergara Give Wacky Clues as She Plays Catchphrase with Jimmy Fallon

Chris Soules: I\'m Ready to Begin My Life with Whitney Bischoff

Lady Gaga Defends Justin Bieber: \'He Really Has a Sweetness to Him\'

David Letterman Jokes That He\'s the Father of Reese Witherspoon\'s Daughter

Please enable JavaScript to view the comments powered by Disqus.

Mayim Bialik Can\'t Name a Kardashian – and That\'s Just Fine

All the Glam Red Carpet Pics You Missed from the Met Gala

Rob & Kate, Anna Kendrick, Vanessa & Selena and More!

See Every Olsen Twin Met Gala Look (Spoiler: They\'re All Amazing)

100+ Unforgettable Dresses from the 2015 Met Gala

Al 19 Met Gala Afterparty Looks You Can\'t Miss (Warning: Sexy Dresses Ahead)

Reese Witherspoon Officially Launches Her Lifestyle Site Draper James – Take a Tour!

Repli-Kates: 13 of the Princess\'s Outfits We Can\'t Wait to See in Mini

Why Maksim Chmerkovskiy and Kirstie Alley Aren\'t Speaking

Chris Pratt Flashed Amy Poehler?! Hear His Take – And See Her Reaction

Thank you for signing up! Your request may take up to one week to be processed.