Meghan Markle, the Duchess of Sussex, has sued UK tabloid Mail on Sunday for unlawfully publishing a private handwritten letter she had sent to her estranged father, Thomas Markle. The law firm representing the duchess accused the paper of a campaign of false derogatory stories.

“We have issued proceedings to redress this breach of privacy, infringement of copyright and the aforementioned media agenda,” the law firm said.

Meghan Markle (EPA)

In statement, her husband, Prince Harry, likened the media’s treatment of his wife to that meted on his mother, Princess Diana. He added Meghan had, “become one of the latest victims of a British tabloid press that wages campaigns against individuals with no thought to the consequences”.

In the emotional statement, Prince Harry wrote, “I’ve seen what happens when someone I love is commoditised to the point that they are no longer treated or seen as a real person…I lost my mother and now I watch my wife falling victim to the same powerful forces.”

This was in reference to the treatment his mother received after she married Harry’s father Prince Charles. Princess Diana died in a car crash in Paris, France, in 1997 after being followed by paparazzi. Prince Harry was 12 years old.

PRINCESS DIANA AND PRINCE CHARLES (Reuters)

Responding to the suit, Mail on Sunday said it, “stands by the story it published and will be defending this case vigorously”.