Senior royals worked with the media to help defeat Meghans court case regarding the private letter she wrote to her father.
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In 2019, Thomas Markle faced intense public and media backlash for releasing to the British media, a private letter that Meghan had written to him. Thomas shared the private, handwritten letter with The Mail on Sunday in February 2019, and parts of it were published.
Following the release, some royal experts and commentators blasted Thomas's act as the "lowest of the low," highlighting the "invasive and intrusive" nature of making a daughter's private letter public, describing the move as a betrayal of parental trust and a calculated attempt to monetise family conflict.
Meghan officially launched legal action against the newspaper's publisher for misuse of private information and copyright infringement.
The High Court ruled that Meghan had a "reasonable expectation" that the letter she wrote to her father would remain private. He described the newspaper's disclosures as "excessive and hence unlawful."
Meghan herself later described the act as a fundamental "betrayal" during her 2021 interview with Oprah Winfrey, stating she could not "reconcile" how a father could do that to his child.
Critics often dismissed Thomas Markles "self-defence" argument, suggesting instead that his actions were driven by greed and a desire for attention rather than a genuine effort to mend the relationship.
During the court case, Mail on Sunday editor Ted Verity stated in his witness statement that he received "high-grade information" about the letter's drafting from a "senior member of the Royal Household" who held "authority and responsibility".
Prince Harry alleged that at the time, William’s office authorized briefings against them. Additionally, senior aides like Jason Knauf provided evidence—such as Meghan's texts about "pulling at the heartstrings"—that the Mail on Sunday used to challenge her credibility.
Despite the royal family involvement in trying to derail the case, the legal proceedings confirmed that the Mail on Sunday published parts of this highly personal correspondence, which ultimately led to the ruling in favor of the Duchess of Sussex.
The case is widely cited as a landmark victory for individual privacy rights over tabloid intrusion.