Duchess Meghan has also won the appeal against the publisher of "Mail on Sunday" in the dispute over the partial publication of a letter to her father.
The Court of Appeal in London confirmed an earlier ruling by the High Court, according to which Meghan's personal rights were violated by the publication.
"The content was personal, private and not of legitimate public interest," judge Geoffrey Vos justified the decision on Thursday.
Meghan was satisfied with the verdict.
"This is not just a victory for me, but for anyone who has ever feared standing up for a just cause," said a statement from the Duchess of Sussex.
The forty-year-old has been in a clinch with her father Thomas Markle since her wedding to Prince Harry in May 2018.
The letter a few months later should repair the relationship, according to Meghan.
The now seventy-seven year old pensioner saw it differently and passed the letter on to the journalists of the "Mail on Sunday".
During the appeal process, the publisher argued that Meghan had already accepted publication of the letter when writing it by deliberately choosing the wording carefully.
The court saw it differently.