Royal historian Hugo Vickers has blasted Prince Harry and Meghan Markle, claiming they "caused the late Queen a lot of distress".
Harry and Meghan dramatically quit their roles as senior members of the Royal Family in January 2020 and moved to the US after a short stint in Canada.
They then embarked on a series of media endeavours that saw them hit out at members of the Royal Family, drawing heavy criticism in the process.
Speaking to GB News, Vickers said: "I think the statements they made caused the late Queen an enormous amount of distress and difficulties in the last year of her reign.
"This was unacceptable in my view and and some of the statements have been contradicted even by them subsequently."
Harry and Meghan moved to the US in January 2020
PAThis comes after Princess Kate's uncle entered the Celebrity Big Brother house.
Upon entry, Gary Goldsmith opened up on his views towards the Duke and Duchess of Sussex.
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Speaking to Sharon Osbourne on the ITV programme last night, Goldsmith said: “I have a feeling that Harry was really loved.
"When they were a threesome – so Kate, William and Harry – they looked really comfortable together.
Royal historian Hugo Vickers slammed the pairs behaviour as "unacceptable"
GB NEWS
“Then suddenly there’s an extra dynamic that comes in, puts a stick in the spokes, and creates so much drama that I genuinely don’t think was there.
"They rewrote the history and said how unhappy he was. And I just don’t think that’s fair.
“You can’t throw your family under the bus, write books about it, and then expect to be invited around for Christmas.”
Talking about Goldsmith's appearance on the reality show, Vickers said: "There always seems to be one member of the family that goes a little bit off the rails.
"They've never been able to pin a single nasty thing on Catherine Middleton, so they tried a little bit with her sister for a time.
Gary Goldsmith entered the BIg Brother earlier this week
GETTY"They wanted to paint her as a wild child. That didn't work either. And so now you've got the uncle.
"I bet you the family would much prefer that he didn't take part in this thing.
"What he has said of course about Prince Harry and Meghan Markle has been said before and is rather widely accepted.
"I rather support what he says."