Markle, 53, has been vocal in her criticism of Meghan and Harry all year in the lead up to the wedding, but the criticism directed at Ragland was a new tactic to get her half-sister’s attention.
In tweets that were momentarily public, but have since been protected by Markle securing her account, she claimed Ragland was also responsible for spreading untruth about her shared father, Thomas Markle.
In screenshots of the tweets obtained by Mamamia early this morning, it is clear that the estranged sister is angry with the sleights against her dad.
“The world does not know that our dad raised her most of the time without the input of her mother especially from age 12 through high school and he gave her everything she had and is,” Markle tweeted.
“She was never raised as an only child. Truth kids! He is amazing and successful and mags lie.”
Markle subsequently tweeted defensive responses to comments made by some of her followers.
"Glad you love people you don't even know. But everything that you think you know from tabloids is a lie. Dad pretty much raised her most of her life on his own and Doria was not around very much."
Clearly very hurt by the minimisation of her father's role in the Duchess' life, Markle also tweeted, "Losers who called him a sperm donor can choke on their words."