She was seen handing security a letter, presumably meant for the Duchess.
Meghan Markle has been a royal pro since her marriage to Prince Harry, but that doesn't mean it's been easy. Samantha, who suffers from multiple sclerosis, was pushed by her partner in a wheelchair through an open gate.
She has been demanding a meeting with the Duchess of Sussex and her husband Prince Harry since she was snubbed from the royal wedding in May.
Samantha Markle's trip to Kensington Palace may not have been a complete royal waste of time.
"Everybody would love to know what's in that letter", Samantha tweeted on Sunday.
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. "She's mindful that she's representing the Queen and the royal family and doesn't want to put a foot wrong".
Samantha first publicly slammed Meghan after her romance with Harry became public knowledge calling her a "social climber" who is "not fit to be a royal".
Some of her comments seem a bit freakish though and it's hard to figure out what exactly is going on especially after she apologised to Meghan during an appearance on The Jeremy Vine Show last week.
"There is so much water under the bridge and so much has spun out of control that was never meant to", she explained.
Grant said she was hurt that some in the family weren't invited to the wedding (their father, Thomas Markle was, though he couldn't make it because of health concerns).