Samantha launched her attack on Twitter. Photo / Twitter
Meghan Markle's half-sister Samantha has launched yet another Twitter attack on the Duchess of Sussex - this time bashing her coat of arms.
Samantha Markle called it "extremely improper that my father was not named" on the Duchess' coat of arms despite his ties to his now royal daughter, reports the Daily Mail.
She added that "quite frankly it looks like it was drawn by someone in a kindergarten classroom" before citing the College of Arms' requirements for obtaining a seal, which say an American can do if they show descent from the British royal crown.
Yesterday's Twitter tirade came just days after another one of Samantha's rants where she insulted Meghan for being "ungrateful" and said the Duchess didn't "walk on water".
Samantha wrote on Twitter Sunday: "Extremely improper that my father was not named on the coat of arms, and quite frankly it looks like it was drawn by someone in a kindergarten classroom.
"Our father is American but we have ties in the family tree to royalty in several places according to the college of arms."
She then tweeted again: "According to the college of arms in [sic] American should be named on the coat of arms if he is in anyway related to royalty. My father is. What is represented on this coat of arms communication is weak. Where is their representation of women's rights or humanitarianism?"
After her Twitter rant last week, BET published an article calling Samantha a "bitter half sister" and wrote "the white side of her family is living the jealous life".
Samantha then snapped back at the publication, calling them "losers" for "pulling the race card".
"I guess that's all you got because you have a $7.00 an hour desk job at a company called B.E.T. ("Been Eating Twinkies") Black side of the family was snubbed too. keep eating," she wrote.
In earlier tweets, Samantha fired off the false and offensive statement that Meghan's mother Doria Ragland, who remains the only member of the Duchess of Sussex's family to not try and cash in on her daughter's new title, had been paid for an interview with Oprah.
She followed that up on Tuesday with an unnecessary remark about Ragland at the royal wedding, saying she looked a "hockey player in the penalty box".
The Duchess of Sussex worked closely with the College of Arms to design her coat of arms, which represents her and her American roots.
Each member of the royal family has a special design that signifies their rank and their identity.
The Queen signed off on Meghan's design, which features far more detail than the one given to the Duchess of Cambridge in 2011.
The blue background of the shield represents the Pacific Ocean off the California coast, and the two golden rays across the shield are symbolic of the sunshine of the Duchess' home state.
The three quills represent communication and the power of words.
The announcement of the coat of arms revealed by Kensington Palace also bore what is understood to be Meghan's new cypher, or letterhead, featuring the letter "M" with a crown on top.
Beneath the shield on the grass sits a collection of golden poppies, California's state flower, and wintersweet, which grows at Kensington Palace.
The most famous design is that of the Queen who is represented by the royal coat of arms.
The College of Arms, a branch of the royal household, is the official body in the UK that deals with coats of arms and their team of experts - funded by the fees they charge and not taxpayers money - design and research heraldic or genealogical issues.
There is still speculation as to whether Meghan's father Thomas Markle will receive a coat of arms as Kate Middleton and Sophie Rhys-Jones' fathers were when their daughters were married.
The reason for the delay may be that Thomas Markle, a retired Hollywood lighting director who lives in Mexico, is a US citizen, so needs to prove that he has an ancestor who was a subject of the crown.
Meghan's coat of arms suggests an air of independence in comparison to the Duchess of Cambridge's.