"Wait until you see what our home life was like," Markle's sister says after Prince Harry's comments about family.
Is there already some royal drama surrounding the next Royal Wedding?
"It was fantastic. She really enjoyed it. The family loved having her there," he told BBC's Radio 4's Today. "I think we've got one of the biggest families that I know of and every family is complex as well. She's done an absolutely amazing job, she's getting in there and it's the family that I suppose she never had."
It's that last line that seemed to set off Samantha Markle, who PEOPLE described as Meghan's "estranged half-sister" that hasn't had contact with the royal-to-be in over a decade. The two share the same father, Thomas Markle.
After a reporter from London's Daily Express tweeted out Harry's closing quote, Samantha tweeted:
Actually she has a large family who were always there with her and for her. Our household was very normal and when dad and Doria divorced, we all made it so it was like she had two houses. No one was estranged ,she was just too busy. Read my book complete with facts and photos— Samantha Markle (@SamanthaMGrant) December 27, 2017
Meg's family(our family) is complete with sister, brother,aunts, uncles, cousins, and the glue of our family, our amazing completely self-sacrificing father. She always had this family,..Marrying merely extends it.— Samantha Markle (@SamanthaMGrant) December 27, 2017
She has a large family. She always did. Our dad is amazing and completely self sacrificing. We made it so that she had two houses. How fun it was!— Samantha Markle (@SamanthaMGrant) December 27, 2017
Excited for my book coming out and wait until you see what our home life was like!— Samantha Markle (@SamanthaMGrant) December 25, 2017
When reached by BBC for comment, a Kensington Palace spokesperson said Prince Harry's "comments speak for themselves."
Samantha is currently working on a book titled, "The Diary of Princess Pushy’s Sister," a book she swears won't be a "slamming 'tell-all.'"
"It's only a tell-all in that I go through and recant some of the beautiful nuances of our lives, our family home," she previously told "Good Morning Britain."
She added, "But more importantly it has to do with the inter-racial evolution of this country through the lens of my life and my family since the Civil Rights Act until present, and how that intersects with this recent event with my sister, you know, my feelings about it, my family's feelings about it and how sad it was going through it all. But it's more of a beautiful, warm, witty story of our lives and my life."