The Sentebale charity, established in 2006 by Prince Harry (the youngest son of King Charles III of the United Kingdom) to support young people with HIV and AIDS in Lesotho and Botswana, has initiated legal proceedings against him for defamation. This lawsuit, filed in the High Court of England and Wales, stems from a contentious internal governance dispute that led to Harry's resignation from the charity last year. The charity claims that a coordinated negative media campaign, which began on March 25, 2025, has caused significant reputational harm and operational disruption. Alongside Harry, former trustee Mark Dyer is also named as a defendant in the case. The Charity Commission of the UK previously identified mismanagement within Sentebale but found no evidence of bullying, despite accusations from chairperson Sophie Chandauka. The internal strife has severely impacted the charity's reputation, prompting the commission to issue a plan to address governance weaknesses. This lawsuit comes shortly after Harry concluded another legal case against a UK tabloid publisher, which is part of his ongoing legal struggles with the British press.