Prince Harry is facing a legal battle with the remarkably organization he helped establish to carry on his mother’s legacy. Sentebale, the HIV-AIDS charity co-founded by the Duke of Sussex and Prince Seeiso of Lesotho, has filed a lawsuit against the Prince for defamation in London’s High Court.
The legal action, which includes claims for both libel and slander, targets Prince Harry and his associate Mark Dyer, a former trustee of the charity. According to court records, the lawsuit was filed on March 24, 2026, and became public on April 10, 2026, according to TODAY.
Sentebale, which means “forget-me-not” in the local language of Lesotho, was founded in 2006 to support children and young adults living with HIV/AIDS in Lesotho and Botswana. The organization provides essential healthcare, education, and critical life skills to vulnerable youths, honoring the memory of Princess Diana and Queen Mamohato via TODAY.
The lawsuit marks a significant shift in the Duke of Sussex’s legal history. Although he has spent the last three years as a claimant in privacy suits against British tabloids over phone hacking and unlawful snooping, he now finds himself as a defendant in the High Court via NBC News.
Allegations of a ‘Coordinated Media Campaign’
The core of the charity’s claim centers on a series of events following Prince Harry’s departure from the organization. In a statement posted to its website, Sentebale asserted that it is seeking “intervention, protection, and restitution” after what it describes as a “coordinated adverse media campaign” that began on March 25, 2025 via CBS News.
The charity alleges that this campaign caused operational disruption and significant reputational harm to its leadership, its strategic partners, and the organization itself. Further details provided by the board of trustees and executive director indicate that the campaign triggered a “viral impact” and an “onslaught of cyber-bullying” directed at the charity’s leadership via TODAY.
Prince Harry and Mark Dyer have categorically rejected these claims. A spokesperson for the pair described the allegations as “offensive and damaging,” arguing that it is “extraordinary” for charitable funds to be used to pursue legal action against the individuals who built and supported the organization for nearly two decades via TODAY.
A Timeline of Internal Conflict
The rift between the co-founder and the charity’s administration did not happen overnight. Disagreements reportedly surfaced as early as 2023, centering on a latest fundraising strategy via CBS News.
These tensions escalated into a public dispute involving the charity’s chair, Sophie Chandauka. In March 2025, Prince Harry and Prince Seeiso stepped down as patrons of the charity. In a joint statement at the time, they claimed the relationship between the board and the chair was “beyond repair” and stated they were stepping down in solidarity with five trustees who had resigned over an internal dispute via CBS News.
Harry and Seeiso described the situation as “unthinkable” and expressed shock that they were forced to take such a step, adding that they would share their concerns with the Charity Commission via CBS News.
Conversely, Sophie Chandauka accused Prince Harry of orchestrating a campaign of “harassment and bullying at scale” in an attempt to force her out of her position via TODAY.
Key Events Leading to Litigation
| Date/Period | Event |
|---|---|
| 2006 | Sentebale co-founded by Prince Harry and Prince Seeiso of Lesotho. |
| 2023 | Disagreements emerge over a new fundraising strategy. |
| March 2025 | Prince Harry and Prince Seeiso step down as patrons. |
| March 25, 2025 | Alleged start of the “coordinated adverse media campaign.” |
| March 24, 2026 | Defamation lawsuit filed in London’s High Court. |
| April 10, 2026 | Lawsuit becomes public. |
Impact on the Charity’s Mission
Sentebale was established to honor the work of Princess Diana, who was a prominent advocate for HIV/AIDS treatment and worked to reduce the stigma associated with the disease. The charity’s focus on the youth of Lesotho and Botswana remains its primary objective, providing healthcare and education to those living with HIV/AIDS via NBC News.
The current legal battle raises questions about the use of donor funds. The spokesperson for Prince Harry specifically highlighted the irony of using charitable resources to fund a lawsuit against the organization’s founders rather than directing those funds toward the communities the charity was created to serve via TODAY.
While the lawsuit is listed as a claim for defamation, libel, and slander, the specific court documents have not yet been made available to the public, though the case remains open in the UK High Court via TODAY.
The outcome of this case may provide further insight into the internal governance of the charity and the nature of the fallout between the royal co-founder and the current administration. For now, both parties remain entrenched in their positions, with the charity seeking restitution for reputational harm and Prince Harry categorically rejecting the claims.
The case continues to move through the London High Court. Further updates will depend on the release of official court documents and subsequent hearings.
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