Princess Diana previously bypassed palace security with the help of two of her trusted aides to show her support for one of her good friends. When she was still alive, the Princess of Wales was known for being selfless.

In 1990, just before Princess Diana and Prince Charles separated, the Princess of Wales forged a close friendship with Rosa Monckton and her husband, Dominic Lawson. Three years later, Monckton became pregnant, and the late royal was so delighted with the news.

But six months into Monckton’s pregnancy, she and her husband learned that their unborn baby didn’t survive in the womb. Princess Diana was devastated to hear about the news that she suddenly offered to have the baby buried at the palace garden. 

During a previous interview, royal expert Phil Dampier said that Princess Diana was very helpful to those in need, especially to Monckton, because the death of her baby reminded her of her own family’s tragedy. Princess Diana’s older brother, John, died 10 hours after he was born.

“She had all sorts of problems in her own life and so it made her feel better to help others,” Dampier said. “But that doesn’t detract from how important those gestures were to those concerned,” he added.

While speaking with Daily Mail, a friend of Princess Diana said that Monckton and her family were very grateful to the mom of two for offering to bury their baby in the garden of Kensington Palace. But in order to make this happen, the Princess of Wales had to lie to palace security.

Prince Charles’ ex-wife also sought the help of former royal butlers Paul Burrell and Harold Brown to dig the grave. Only three mourners were present during the baby’s burial since Princess Diana told the palace aides that she was just burying her dead dog.

After the Princess of Wales died on Aug. 31, 1997, Monckton penned a touching letter addressed to her good friend. “She instinctively found the words to ease the pain, and at the same time knew that I should name my daughter and bury her,” she wrote. And according to Dampier, Monckton still has the key to the royal garden so that she could bury her daughter anytime she pleases.

Princess Diana Princess Diana's royal visit to Halifax, Nova Scotia, in June 1983. Russ Quinlan/Flickr