Charles Spencer, younger brother to the late Princess Diana, officially weighed in on all the conspiracy theories surrounding the disappearance of Kate Middleton.

“I do worry about what happened to the truth,” Spencer, 59, told the BBC in a teaser clip for his sit-down interview on Sunday.

In the clip, reporter Laura Kuenssberg pressed Spencer for his thoughts on how the current level of the “online kind of conspiracy” compared to the level of “press intrusion” surrounding the death of his sister Diana, who died in a car crash in August 1997 at the age of 36 while fleeing photographers in Paris.

“I think it was more dangerous back in the day,” Earl Spencer told Kuenssberg. “I think if I look back to ’97 and Diana’s death, I think the circumstances of her death [were] so shocking that it did make the industry that supports the paparazzi really consider more carefully what it couldn’t, not because they had a moral judgment but because it was unacceptable.”

Since his sister’s death, Spencer — along with Diana’s sons Princes Harry and William — has been very vocal about the media’s alleged role in the late princess’ death.

“My mum was harassed throughout her life with my dad, but after they separated, the harassment went to new levels. I saw things, I experienced things. I learned things,” Prince Harry, 39, once claimed in an episode of his Netflix docuseries “Harry & Meghan” which dropped in December 2022.

“The pain and suffering of women marrying into this institution. I remember thinking, ‘How can I ever find someone who is willing and capable to withstand all the baggage that comes with being with me?’”

The current Princess of Wales, Kate Middleton, has also found herself under the exact same scrutiny after seemingly vanishing after undergoing abdominal surgery in January.

Shortly after undergoing the “successful” operation, the princess’ office at Kensington Palace released a statement saying that Middleton, 42, had returned to Adelaide Cottage in Windsor to recuperate.

Kensington Palace also issued a statement that “based on the current medical advice,” it was unlikely the future queen would “return to public duties until after Easter.”

However, since the statement, no one has either seen or heard anything from the Princess of Wales prompting several conspiracy theories —  including one that she is in a coma and that William, 41, left her for his alleged mistress Lady Rose Hanbury — to gain traction online.

After reaching out to the Kensington for an update on the missing royal, The Post was told by her office that “Kensington Palace made it clear in January the timelines of the princess’ recovery and we’d only be providing significant updates. That guidance stands” adding, however, the princess was “doing well.”

The mother of three was later spotted alongside mom Carole, 69, sitting in the passenger seat of a car in several grainy photos.

Middleton later added fuel to an already raging fire when she posted a photoshopped picture of herself on Instagram in celebration of the UK’s Mother’s Day.

The photo, which features Middleton, Prince George, 10, Prince Louis, 5, and Princess Charlotte, 8, was later yanked by several news organizations after several of them claimed the photo had been “manipulated.”

The Princess of Wales later issued an apology for posting the photograph.

“Like many amateur photographers, I do occasionally experiment with editing. I wanted to express my apologies for any confusion the family photograph we shared yesterday caused,” she posted on X (formerly Twitter).