Meghan  Markle, the Duchess of Sussex, has threatened the Mail on Sunday with legal action under the Copyright, Designs and Patents Act for publishing a private letter she sent to her father, in which she said he had broken her heart “into a million pieces”, The Guradian reported.

Representatives of the duchess, formerly known as Meghan Markle, have been in touch with the newspaper after its decision earlier this month to publish the handwritten message sent to Thomas Markle in which, according to sources, she complained with a “heavy heart” about the pain her father was causing by giving media interviews.

Meghan complained to her father about “manufacturing this fictitious narrative” about being cut out of her life with Prince Harry, aided by his regular newspaper and TV interviews. Thomas Markle missed last year’s royal wedding after it was revealed he had colluded with a paparazzi agency to stage photos of himself at home in Mexico.