Prince Harry Is Being Sued for Defamation by the Charity He Co-Founded, Here Is What We Know

Prince Harry co-founded Sentebale in 2006 to help children living with HIV in Africa, describing the charity as one of the great purposes of his adult life. Twenty years later, that same organization is suing him for defamation in London’s High Court. Court records made public on April 10, 2026, confirm the claim was filed on March 24, 2026. Here is the full story of how it came to this.

Quick Facts

Field	Detail
Case Name	Sentebale v Duke of Sussex and Dyer, Mark
Case Filed	March 24, 2026
Court	King’s Bench Division, High Court of Justice, London
Claim Type	Media and Communication — Defamation, Libel and Slander
Claimant	Sentebale (charity)
Defendants	Prince Harry, Duke of Sussex; Mark Dyer
Settlement	None — active litigation
Harry’s Response	No public statement as of April 11, 2026
Key Figure	Dr. Sophie Chandauka, Sentebale Board Chair

Where Things Stand Right Now

• Court records made public on April 10, 2026, confirmed Sentebale filed the defamation claim on March 24, 2026 — just two weeks before this article was published.
• Online listings indicate that Harry and his longtime friend Mark Dyer, a former trustee of the charity, are being sued for libel or slander, though court filings do not include further details.
• No documents setting out the specific allegations have been made available publicly. Harry’s office did not return requests for comment as of April 10, 2026. Sentebale has said it will not comment further while proceedings are ongoing.

What Is Sentebale and Why Did Harry Help Start It?

Sentebale is a children’s charity that supports young people living with HIV in Lesotho and Botswana, two countries in southern Africa that have been among the worst affected by the AIDS epidemic. The organization was founded by Prince Harry, the Duke of Sussex, and Prince Seeiso of Lesotho in 2006 as a response to the needs of children and young people in Lesotho and in memory of their late mothers. The name means “forget-me-not” in the Sesotho language, representing a pledge to remember the most vulnerable children in the region.

Harry’s connection to the cause was deeply personal. He first visited Lesotho during his gap year in 2004 and was moved by the children he met whose lives had been devastated by HIV and AIDS. Following that visit, Harry felt compelled to help and set up Sentebale with Prince Seeiso in 2006. For nearly two decades, the charity remained one of the causes most closely associated with him.

Lesotho has the second-highest rate of HIV in the world, with more than 37,000 Basotho children aged under 14 living with HIV. Around 10 percent of all children in Lesotho are considered vulnerable. Sentebale’s work in that context — providing healthcare, mental health support, life skills, and education — made it one of the more meaningful charitable operations in the region.

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How Did a 20-Year Partnership End in a Lawsuit?

The rupture between Harry and Sentebale did not happen overnight. It unfolded over roughly two years and became one of the more public charity governance disputes in recent memory.

Internal tensions began after Dr. Sophie Chandauka, a lawyer, was appointed board chair in 2023. Disagreements over a new fundraising strategy became the visible flashpoint, but the conflict ran deeper than strategy — it was fundamentally a dispute between the board chair and a group of trustees who felt the relationship had become unworkable.

In March 2025, the situation reached its breaking point. Harry and Prince Seeiso released a joint statement saying they were “truly heartbroken” but would be resigning from their roles as patrons following the dispute with Chandauka. They said the trustees had acted in the best interest of the charity in asking the chair to step down.

Chandauka did not stay quiet. She later accused Harry of orchestrating a campaign of bullying and harassment intended to force her resignation. She also told Sky News that filming for one of Harry’s Netflix programs had interfered with a scheduled Sentebale fundraiser, and that an incident involving Meghan, the Duchess of Sussex, had added to the internal friction.

Harry’s side disputed those characterizations. His spokesperson later criticized the official investigation findings. The two sides were, by this point, trading accusations very publicly — and that public conflict is now at the heart of the defamation claim.

What Did the Charity Commission Find?

With the dispute spilling into the media, Britain’s Charity Commission for England and Wales launched a formal investigation. Its findings, published in August 2025, did not fully vindicate either side.

The commission found no evidence of systemic bullying or harassment, including misogyny, at the charity, but acknowledged “the strong perception of ill treatment” felt by some involved.

The commission criticized all parties in the dispute for allowing it to play out publicly and described how all trustees contributed to a “missed opportunity” to resolve the issues, which risked undermining public trust in charities generally.

Sentebale’s commission CEO David Holdsworth said the charity’s problems “played out in the public eye, enabling a damaging dispute to harm the charity’s reputation, risk overshadowing its many achievements, and jeopardizing the charity’s ability to deliver for the very beneficiaries it was created to serve.” Harry’s spokesperson criticized the commission’s report while Chandauka welcomed it. Neither side was satisfied, and the matter did not end there.

What Exactly Is Sentebale Alleging in the Lawsuit?

The full text of the complaint has not been made public. What Sentebale has confirmed — in a statement posted to its website on April 10, 2026 — is that the lawsuit centers on what the charity describes as a sustained, coordinated attack on its reputation.

“The charity seeks the court’s intervention, protection, and restitution following a coordinated adverse media campaign conducted since 25 March 2025 that has caused operational disruption and reputational harm to the charity, its leadership, and its strategic partners,” Sentebale said.

The claim is classified in court filings as a defamation action covering both libel — written or published statements — and slander, which covers spoken statements. Both Harry and Mark Dyer are named as defendants. Dyer is a close personal friend of Harry’s who also served as a trustee at Sentebale before the dispute escalated.

The specific statements Sentebale alleges were defamatory have not been detailed in any publicly available court document. Legal proceedings in the UK’s High Court can take considerable time before full details enter the public record.

Who Is Mark Dyer and Why Is He Named?

Mark Dyer is a former Welsh Guards officer who became a mentor and close friend to Prince Harry after serving as an equerry to King Charles III. He was also a trustee of Sentebale, and court records name him as the second defendant alongside Harry in the defamation claim. Dyer has maintained a low public profile throughout the dispute, and no public statement from him has been issued in response to the lawsuit.

What Happens Next in This Case?

The case is in its very earliest stage. The claim was filed in March 2026, made public in April 2026, and no hearings have been scheduled publicly. In the UK High Court, defamation cases typically proceed through several stages — initial acknowledgment of service, a defense being filed, and potentially a preliminary hearing on meaning before any trial.

Given the public profile of the parties and the sensitivity of the allegations, the case is expected to attract significant ongoing media coverage. Both sides have so far indicated they intend to let the legal process run its course without public commentary.

Key Dates

Milestone	Date
Harry and Prince Seeiso found Sentebale	2006
Sophie Chandauka appointed board chair	2023
Internal dispute becomes public	Early 2025
Harry and Prince Seeiso resign as patrons	March 2025
Chandauka accuses Harry of bullying and harassment	March 2025
Charity Commission report published	August 2025
Defamation claim filed at High Court	March 24, 2026
Court records made public	April 10, 2026
Next hearing date	TBD

Frequently Asked Questions

What is the Sentebale defamation lawsuit against Prince Harry about?

Sentebale filed a defamation claim at London’s High Court on March 24, 2026, alleging that Prince Harry and former trustee Mark Dyer made statements — either written or spoken — that caused reputational harm to the charity and disrupted its operations. The specific statements at issue have not been publicly disclosed, as court documents remain unavailable.

What does defamation mean in UK law?

In the United Kingdom, defamation covers both libel, which involves harmful false statements made in written or published form, and slander, which covers harmful false statements made verbally. A claimant in a UK defamation case must show that a statement was made, that it referred to them, and that it caused or was likely to cause serious harm to their reputation. The Defamation Act 2013 sets the current legal standard in England and Wales.

Why did Prince Harry leave Sentebale in the first place?

Harry resigned as patron in March 2025 following a dispute with board chair Dr. Sophie Chandauka, who was appointed in 2023. A group of trustees asked Chandauka to step down, Harry and Prince Seeiso backed those trustees, and both founders ultimately resigned saying the relationship between the board and the chair was beyond repair. Chandauka then publicly accused Harry of orchestrating a bullying campaign against her, which Harry’s side disputed.

What did Britain’s Charity Commission find when it investigated?

The Charity Commission published its investigation report in August 2025. It found no evidence of systemic bullying or harassment at the charity but criticized all parties for allowing the dispute to play out publicly. The regulator said the public fallout damaged Sentebale’s reputation and undermined trust in charities more broadly. Neither Harry nor Chandauka was fully vindicated by the report.

Has Prince Harry responded to the lawsuit?

No public response from Harry or his office had been issued as of April 11, 2026. Requests for comment sent to the office of the Duke of Sussex on April 10, 2026, were not returned. Sentebale has also said it will not comment further while legal proceedings are ongoing.

What is Sentebale asking the court to do?

Sentebale is seeking the court’s intervention, protection, and restitution. That language suggests the charity wants both a legal declaration that the statements were defamatory and some form of financial remedy or injunctive relief. The exact relief sought will become clearer once full court documents are available.

Who is Mark Dyer and why is he also being sued?

Mark Dyer is a former Welsh Guards officer, a longtime close friend of Prince Harry, and a former Sentebale trustee. He is named as the second defendant in the defamation claim alongside Harry. No public statement from Dyer has been issued in response to the lawsuit.

Could this case go to trial?

It is too early to say. High Court defamation cases in the UK frequently settle before reaching trial. However, given the public profile of all parties involved and the reputational stakes on both sides, the case could also proceed through a full trial if no agreement is reached. That process would likely take at least one to two years from the filing date.

Last Updated: April 11, 2026

Disclaimer: This article is for informational purposes only and does not constitute legal advice. Legal claims and outcomes depend on specific facts and applicable law. For advice regarding a particular situation, consult a qualified attorney.