She’s been making trouble for her royal half-sister since she first started dating Prince Harry.
And now, it seems Samantha Markle is about to make a fortune out of her unborn niece or nephew.
Ms Markle is poised to earn around £100,000 ($AU182,329) thanks to a number of appearances on chat shows, documentaries and even a book deal.
That’s according to UK tabloid The Mirror, which also claims the 54-year-old will charge $AU3600 an hour for media interviews in the lead up to the birth of Prince Harry, 34, and Meghan Markle’s first child, due in the English spring.
A source defended Ms Markle’s plans, telling the publication she had “every right” to cash in.
“Samantha has every right to celebrate the birth of her niece or nephew in Spring and will talk about her connection to Meghan, as they are family,” the source said.
“She does not have an outlandish lifestyle so the money will make a difference to her.
“She has never been given a penny by Meghan so she has every right to earn her own money in this way.”
Ms Markle, who was diagnosed with multiple sclerosis in 2008 and is now confined to a wheelchair, has aired a number of grievances about her half-sister since her relationship with the Duke of Sussex was first revealed.
Their rift escalated after the Duchess of Sussex, 37, failed to invite her half-sister by their father Thomas and other relatives to her lavish May 2018 wedding.
It also deepened after Meghan allegedly cut off contact with her father after he participated in paid, staged paparazzi photos showing him researching British history and being measured for a suit in the lead up to the nuptials.
He ended up pulling out of the wedding after suffering several heart attacks, with Prince Charles famously walking his daughter-in-law down the aisle in Mr Markle’s place.
Since then, Mr Markle, 74, has claimed he has been “ghosted” by his pregnant daughter and has slammed her and her new husband in a string of media interviews.
In recent weeks, emotional letters between father and daughter have also been made public.
In one, the ex-Suits star begged her dad to stop “victimising” her, writing: “Dad, I’m so heartbroken. I love you. Please stop victimising me through the media so we can repair our friendship.”
She was reported to be devastated after her father replied by suggesting they pose together in a photo shoot to prove their reconciliation.
And last week, headlines were made after a number of Meghan’s close friends spoke anonymously to People magazine in defence of the Duchess.
One claimed Ms Markle and royal half-sister barely knew each other growing up.
“They’ve been made to appear as siblings who were very close and had this falling out, and that’s not the truth at all. The two of them have no relationship,” the source said.
In December, it was reported that Ms Markle had been placed on a “fixated persons list” for posing a “reputational risk” to the royal family, although she dismissed the claims as “fake news” in a tweet to E! News.
That month she also wrote to her half-sister asking her to “end the rift” amid fears their father could die.
“Please give him joy in his last years by showing you love him. The time is now,” the letter reportedly said.
And in October, Ms Markle was famously turned away from Kensington Palace by security after attempting to force a face-to-face meeting with the royal couple.
Instead, she was forced to hand over a letter before being moved on by guards.
When the royal romance was first announced, Ms Markle quickly branded Meghan as a “social climber” who is “not fit to be a royal”, revealing plans for a tell-all book titled
The Diary of Princess Pushy’s Sister, which is slated for publication in April.