Prince Harry memorably rode Splash Mountain at Disney World with his mother, Princess Diana, in 1993

As a landmark auction of Princess Diana’s dresses and treasures unfolds, two designers who knew her reveal why her style — and spirit — still captivate the world

The Duke of Sussex reportedly spoke with his uncle about the idea of changing his family's name

The Duke of Sussex reportedly spoke with his uncle about the idea of changing his family's name

Over 200 pieces, from gowns to accessories, make up "Princess Diana’s Style & A Royal Collection" presented by Julien's Auctions

The letter is one of many remarkable royal pieces that make up "Princess Diana’s Style & A Royal Collection"

"Luckily unoccupied at the time - but still deeply disturbing," Spencer wrote in a social media post regarding the Tuesday, May 27 incident

The Spencer twins and their older sister, Kitty, showed off their regal style on the Cannes red carpet

The Princess of Wales often pays tribute to her mother-in-law through fashion

Earl Spencer said he often thought of his sister "because we shared the same sense of humor"

The Prince of Wales entertained members and supporters of Child Bereavement charity at Windsor Castle on May 13

"They just didn’t want Diana in the press. It was really they didn’t want to fuel the fire," said Denis O'Regan, who got the shot

The Duchess of Sussex shared how to shop her look from the night out, with one item already sold out

Georgina Rodríguez collaborated with Vetements' creative director on a slip dress-inspired design nodding to what the late royal wore to the 1996 Met Gala

The Duke of Sussex is stepping out for the first time since losing a key legal appeal to restore his security in Britain

Lady Sarah McCorquodale is known to be close to her nephew Prince William

The movie stars weren't immune to Princess Diana's charms, according to the new book "Dianaworld," exclusively excerpted by PEOPLE

In "Dianaworld," a new biography excerpted exclusively by PEOPLE, Diana is said to have disguised herself in "male drag" — wearing an army jacket, leather cap and aviators — to slip undetected into a London gay bar

In her first-ever podcast interview, the Duchess of Sussex touched on something Prince Harry said about her and his mother

A source told Richard Eden of the 'Daily Mail,' "William wanted to strike out on his own"