EXCLUSIVE: King Charles 'Epitaph' Revealed – How Cancer-Hit Monarch 'Has Already Said All His Goodbyes to the World'
King Charles may have left his final message, according to insiders.
Feb. 12 2026, Published 6:55 p.m. ET
King Charles has effectively written his own epitaph through a sweeping environmental documentary premiered inside Windsor Castle – a deeply symbolic gesture sources have told RadarOnline.com amounts to a "final farewell message" from a cancer-hit monarch now more determined than ever to define how history will remember him.
Charles, 77, who is still undergoing treatment for an undisclosed form of cancer, recently hosted an unprecedented screening of his 90-minute film Finding Harmony: A King's Vision in the Waterloo Chamber at Windsor Castle, before it was released earlier this month on Amazon Prime Video.
King Charles premiered his environmental documentary inside Windsor Castle.
The event marked the first time a commercial film premiere has been staged inside the 1,000-room royal residence.
In a notable break from protocol, palace officials temporarily lifted a long-standing ban on photography within the State Apartments, allowing influencers and guests to document the evening.
Ordinarily, castle regulations state: "Photography and filming, including wearable devices, are not permitted inside the State Apartments or St George's Chapel."
But for this event, the rules were relaxed.
A palace source said: "The King was adamant that this project could not feel remote or cloistered behind palace gates. He wanted the documentary to resonate with a broad audience, particularly younger viewers who engage with content digitally. In his view, that meant embracing a more contemporary approach to how the event was presented."
King Charles Champions Environmentalism
Around 200 guests attended the exclusive premiere.
The insider continued: "Windsor Castle operates under very clear and long-established guidelines, especially when it comes to photography and filming. Those restrictions are part of preserving the dignity and privacy of the space. However, for this premiere, His Majesty recognized that adhering rigidly to protocol would have undermined the spirit of the film."
Around 200 guests attended the screening, including Kate Winslet, who narrates the film, as well as Dame Judi Dench and Sir Rod Stewart.
After the preview, guests moved to St George's Hall for a champagne reception beneath gilded ceilings traditionally reserved for state banquets.
The documentary charts Charles's decades-long environmental advocacy – from early warnings about organic farming and sustainable architecture to recent renewable energy projects across royal estates.
'We're Destroying Our Means of Survival'
King Charles warned viewers about the urgent threat of climate change.
In the film, Charles delivers a stark message about climate change.
He warns: "We're actually destroying our means of survival, all the team. To put that back together again is possible, but we should have been doing it long ago. We've got to do it as fast as we can now.
"The underlying principles behind what I call harmony, I think we need to follow if we're going to somehow ensure that this poor old planet can support so many. It's unlikely there's anywhere else."
Archive footage includes brief appearances by Prince Harry, 41, and Andrew Mountbatten-Windsor, 65.
But insiders said the project is intensely personal.
King Charles 'Has Already Said His Goodbyes'
Never Miss an
Daily updates from the heart of Hollywood, right to your inbox
By entering your email and clicking Sign Up, you’re agreeing to let us send you customized marketing messages about us and our advertising partners. You are also agreeing to our Terms of Service and Privacy Policy.
Insiders have described the project as a defining statement of his reign.
Another royal household source said: "This was not simply about unveiling a documentary – it was designed to underline what the King wants his reign to stand for. Environmental stewardship is not, in his mind, a side project or personal hobby. It is foundational to the way he defines his role as monarch."
A second source was more blunt. "Those close to him see this film as his epitaph.
"It encapsulates everything Charles has tried to say to the world for more than 50 years – about balance, responsibility, and humanity's duty to nature.
"Given his health challenges, there is a sense that he has already said his goodbyes in philosophical terms."
