Royal fans, historians and journalists alike are now remembering Princess Diana, 24 years after her death. So, the princess' friend recalled how Prince Charles and Queen Elizabeth II argued against his son's "surprising and brave move" to return the People's Princess' body to the U.K.

In the Channel 5 documentary "Diana: 7 Days That Shook the Windsors, " Richard Kay revealed Prince Charles's bold move when Princess Diana died. When he was about to get her body, he said the Prince of Wales had no right to be there other than being the father of her sons, Prince William and Prince Harry.

The heir to the throne wanted to take the royal flight to Paris at the time, but the Queen refused, Express noted. Kay revealed it was when Prince Charles fought harder for his former wife than he ever did in the past.

Despite his mother's refusal, Prince Charles insisted on taking the flight, which made the Monarch give in. He took the royal plane and placed Princess Diana's coffin in it 16 hours after she died.

She was, then, taken to a private mortuary, moved to St. James' Palace and brought to the Kensington Palace. At the time, the Royal Family was staying with Queen Elizabeth and Prince Philip at Balmoral.

The future king felt devastated seeing the woman he once loved lifeless. The hardest part for him, probably, was telling his kids the devastating news about their mother.

According to reports, Prince Charles "absolutely fell apart" when he learned of Princess Diana's passing. The Princess of Wales died on Aug. 31, 1997 and more than two decades after, her brother, Charles, the 9th Earl Spencer, had been remembering his sister with the oaks he had planted to mark each year of her life.

Charles' has now formed an avenue of trees thriving at the family estate, per People. Alternatively, Prince Williams spent the day with his wife, Kate Middleton, and their three kids, Prince George, Princess Charlotte and Prince Louis, in private.

In addition, Princess Diana's fans pay tribute to one of the most respected icons of the last century. They laid flowers and left messages outside of her former home in Kensington Palace. Alternatively, others visited her recently-unveiled statue, which Prince William and Prince Harry commissioned to honor their mom.

The statue is open for viewing from Wednesday to Thursday. However, the Historic Royal Palaces opened the gardens' walkway on Tuesday, Aug. 31, to remember Princess Diana's death anniversary.