Meghan Markle’s half-sister, Samantha Markle, was dubbed as poisonous by Richard Fitzwilliams, a royal expert and commentator.

While speaking with Express, Fitzwilliams said that he doesn’t think the Duchess of Sussex will ever speak to her sister despite their dad’s poor health.

“As far as Meghan’s sister is concerned, I am sure she will not see her for reasons that are obvious. Samantha Markle is just poisonous. As far as her father is concerned, one hopes for a resolution but one simply does not know,” he said.

Earlier this month, Samantha flew to London to reach out to the “Suits” alum. But upon arriving in Kensington Palace, she wasn’t allowed entry by the palace security. Days later, the book author revealed that she wasn’t turned away by the palace staff.

Samantha also revealed that she sent a letter to Markle and said that she hopes she will receive it soon. When asked what’s written in her letter, Samantha refused to share any details. But she hinted that it has something to do with their family’s ongoing feud.

“I was very respectful and I went there to deliver a letter. It was a nice experience and nobody was mean to me at all, I was quite surprised. I wanted to express some sentiments and set some records straight. I can’t give the details of that but I really wanted the world and really my sister and the British royal family to know what happened and know the truth about a lot of things,” she said.

Last week, a source told US Weekly that Markle was anxious about her half-sister being in London.

“She knows these tactics won’t stop. It’s sad that this will continue – and it’s making Meghan very uneasy,” the source said.

But despite these negative feelings, Markle has not reacted publicly to her sister’s interviews. Prince Harry’s wife is not allowed to make personal comments about situations since everything has to go through the palace.

Meghan Markle Meghan Markle may never speak to her half-sister again because she is poisonous, says a royal commentator. Pictured: Markle leaves the University of Chichester's Engineering and Digital Technology Park after an official visit to West Sussex on October 3, 2018 in Chichester, United Kingdom. Photo: Getty Images/Dan Kitwood