Have you ever wondered what or how Prince William and Harry felt when their mom, Princess Diana, died in 1997? Since the British royals were only 15 and 12 at the time of their mother’s death, they had kept their grief to themselves. But after two decades, the two men are breaking their silence through a 65-minute documentary titled, “Diana, Our Mother: Her Life and Legacy,” which airs Monday at 10 pm on HBO.

Diana, the Princess of Wales and Prince Charles’ first wife, died in a car crash in Paris on Aug. 31, 1997, at the age of 36. At the time, the whole world grieved with the British royals because Diana had been considered the people’s princess.

But in the hour-long HBO documentary, the world finally gets a rare glimpse into the life of the late Princess of Wales through the eyes of her two beloved sons.

A mother’s love

In the documentary, Prince William and Harry detailed how their late mother made them feel loved. Will said that he and his brother “felt incredibly loved.” Harry even described it as a love that can be felt by a son even if his mom was “on the other side of a room.”

Another incident that showed how Princess Diana loved her sons was when she surprised her eldest son by inviting his favorite supermodels to their home. The models were Cindy Crawford, Naomi Campbell, and Christy Turlington.

Naughtiest parent

The late Lady Di was known for her charity works and patronage.

In fact, former South African President Nelson Mandela once recognized Diana’s celebrity status as a way of transforming public attitudes and the “stigma attached to the people living with HIV/AIDS” and leprosy. But how was she as a mom?

According to the Duke of Cambridge, his mother “understood there was a real life outside the palace walls.” The 35-year-old prince also said that his mom wanted them to “see it from a very young age,” that is why she often took them to homeless shelters.

Prince Harry, on the other hand, said his mother was “a total kid, through and through.” The 32-year-old prince also revealed one of his mom’s mottos and that was — “You can be as naughty as you want — just don’t get caught.”

Harry added that he also remembered her mother’s laughter, which exuded pure happiness. The brothers also imagined how it would be like if their mom was still around to see her two grandchildren, Prince George and Princess Charlotte, but they didn’t elaborate, with Prince William saying that his “mother lives [with him] every day.”

Regrets

Will and Harry also got candid in the documentary on what they regret about the day their mom died.

Even though both brothers remembered their mother’s last phone call to them, Harry said he regretted it for the rest of his life when he realized how short his conversation was with her at the time.

During the call, Prince William and Harry were spending the summer with their dad, cousins, and Queen Elizabeth II in Scotland. So, they were in a rush to get back to playing when they spoke to their mom for the last time. Both men also admitted that their mother’s last phone call, which happened hours before her tragic death, had stuck to their minds “quite heavily.”

Media influence

As for maintaining their privacy and how the media affected their lives, Kate Middleton’s husband shared the lessons he learned from his mother.

William said he remembered his mom crying because of the media, which he believed was an “industry” that “lost its sense of dignity and its perspective on what was appropriate.”

The father-of-two also stressed the significance of maintaining “a barrier and a boundary” when it comes to the media. According to the prince, “if both sides cross it, a lot of pain can come from it.”

The Princess Diana documentary was helmed by Ashley Gething. It depicts the life of the princess — from her marriage to the Duke of Cornwall in 1981 to their separation in 1992 and the couple’s 1996 divorce. For the Great Britain viewers, you can watch it on ITV on Monday.