A rival newspaper reported that the Sussexes' camp was not responsible for the disclosure

Charlotte Griffiths, editor-at-large of The Mail on Sunday, has alleged that Prince Harry and Meghan Markle's communications team provided her with information about a meeting between Sussex representatives and a senior royal aide in 2025.

She claims the couple's camp later briefed a rival publication, denying any involvement in the disclosure.

According to Ms Griffiths, a close adviser to the Duke and Duchess of Sussex arranged a lunch with her at The Ivy in London during the summer of 2025.

She maintains that information shared at the meeting led to several stories about the couple, including front-page coverage suggesting efforts to mend relations with King Charles.

The stories focused on a July 2025 meeting at the Royal Over-Seas League in London, where Liam Maguire and Meredith Maines, then serving as Harry and Meghan's US-based public relations chiefs, met with Tobyn Andreae, an aide to the monarch.

Ms Griffiths said she was given advance notice of the meeting, allowing The Mail on Sunday to position a photographer outside the venue. The resulting images captured the representatives from both camps seated on a balcony that was clearly visible from a public park beneath.

Publication of the photographs sparked speculation that the long-running family estrangement might be easing, though concerns emerged that exposing the talks could jeopardise any fragile progress toward reconciliation.

The meeting took place just months after Harry criticised his father in a BBC interview following the conclusion of his security case.

Following publication of The Mail on Sunday's story, sources close to Harry told The Telegraph that neither the Duke nor Duchess of Sussex had leaked details of the meeting.

The sources further claimed that having meeting details splashed across newspaper front pages was not what they wanted.

Ms Griffiths argued that although The Telegraph sources did not directly accuse Buckingham Palace of leaking details of the meeting, the denial from Sussex insiders created that impression.

She maintained this left readers believing the Palace had betrayed the confidence of those involved, when she claims the information had actually come from Harry and Meghan's own team.

The journalist, who gave evidence during Prince Harry's legal battle against Associated Newspapers, made the allegations in an article published on Wednesday.

Ms Griffiths stated that her decision to identify her source stemmed from accusations made during Harry's lawsuit against Associated Newspapers.

The duke's legal team alleged that certain stories she had written about him were obtained through criminal methods and could not have originated from leaks within his social circle.

Ms Griffiths claimed Harry's barrister, David Sherborne, branded her a "fantasist" during the proceedings.

She argued that suggesting she had fabricated an anecdote amounted to accusing her of "perjury, for which the maximum sentence is seven years imprisonment."

Journalists typically protect confidential sources, but Ms Griffiths maintained that the allegations of illegal newsgathering compelled her to break with convention.

The trial also saw previously unseen Facebook messages between Ms Griffiths and Harry made public, including exchanges in which they discussed "movie snuggles".

GB News has contacted the Duke and Duchess of Sussex's representatives for comment.