In the interview with Good Morning Britain, the 74-year-old leaked details of private conversations with Meghan and Harry before telling U.S. press he felt "frozen out".
Samantha, Meghan's half sister from her father's first marriage, has previously called the royal "cold" and fake.
After many failed attempts at getting in touch with Meghan, Samantha made a decision to come to London to confront her about a few things on her mind. After making numerous attempts in private to arrange a one on one meeting with The Duchess of Sussex to discuss their 74 year old father's health, Kensington Palace have refused to respond.
"This is the closest Meghan has come physically to that side of her family since she married into the royal family but palace staff had clearly been instructed not to allow her access". However, arrived in a wheelchair an American (she suffers with multiple sclerosis in 2008), did not let the Palace guards.
5.2-magnitude aftershock rattles northern Haiti
Another person was killed in the town of Chansolme when a house collapsed and one other person in Saint-Louis-du-Nord. Impoverished Haiti, where many live in tenuous circumstances, is vulnerable to earthquakes and hurricanes.
The royals' family drama has played out in great detail in the public after a series of explosive incidents stemming from Meghan's decision to ban family members (bar her mother) from her royal wedding back in May.
"I just think that families can be this way when there's confusion and when people are hurt", she added. However her arrival at palace gates has got her no further in her quest to speak face-to-face with Meghan it would seem. "My sister and the Royals handled things wrong and everybody knows it".
"Moving forward, I apologize and wish things could be different", Grant said.