She was seen handing security a letter, presumably meant for the Duchess. On Saturday, she traveled to Kensington Palace, where her sister and Harry and other royals live.
According to the Daily Mirror, the 53-year-old had flown to the United Kingdom "to confront her younger sibling" after sending another letter to Kensington Palace warning that her behaviour would "escalate" unless such a meeting was scheduled. Grant, who has multiple sclerosis, was in a wheelchair pushed by her friend.
Miss Markle was photographed trying on a mask with the face of Prince Harry after bystanders said she refuse to leave the area.
The half-sister of the Duchess of Sussex Meghan Markle was reportedly refused entry into Kensington Palace after she turned up at the gates unannounced.
"She fully hoped they would let her in but she was turned away", a source told the paper.
As Nicki Swift previously reported, Samantha publicly apologized to Markle, 37, last week after flying to London to try to speak with her in person.
Samantha went on to reply to another commenter on Twitter, saying that Meghan ghosted "everyone" in the family, especially Thomas and this is why she spoke out.
A few days ago, Samantha issued a public apology to Meghan on TV.
Samantha is Meghan's half-sister from her father's first marriage.
"I just think that families can be this way when there's confusion and when people are hurt", she said.
One of her tweets said that the "Duchess should bow to the daddy" presumably implying that Meghan should bow to their father and we're not sure where on earth she's going with this, it does seem freaky (although she is, of course, entitled to her opinion).
"I felt it could've all been nipped in the bud had everyone been included and we all agreed to move forward with positive resolve".