She reportedly then handed a note to security and left following a "stand-off" at the gates of the palace.
Being pushed in a wheelchair, Markle refused to leave the area and went on to buy souvenirs including masks of Meghan and Harry.
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 freakish (although she is, of course, entitled to her opinion).
Samantha, Meghan's half sister from her father's first marriage, has previously called the royal "cold" and fake.
Liverpool's Jurgen Klopp: Nations League a 'senseless' competition
I also have my concerns about Sarri's side defensively, namely with David Luiz playing in a four-man defence. It's a good result - I'm so satisfied with what we have done", said Guardiola.
Samantha has been demanding a meeting with the Duchess of Sussex and her husband since she was snubbed from the royal wedding in May. While Thomas began to speak out against the royal family in the press, Samantha, who was apparently upset after failing to score an invite to their nuptials, took to slamming her half-sister on social media.
A few days ago, Samantha issued a public apology to Meghan on TV.
"There is so much water under the bridge and so much has spun out of control that was never meant to", she explained. The hurt feelings wouldn't have snowballed, but believe it or not, it doesn't mean that we love you any less, I just think that families can be this way when there's confusion and people are hurt.
She also made comments about being followed by paparazzi while in the UK.
"Moving forward, I apologize and wish things could be different", Grant said.