Her Majesty believes "deeply" in forgiveness and "not holding grudges," and would likely "welcome" Prince Harry and Meghan back into "the Royal fold" if they wished.
Ingrid Seward, author of Prince Philip Revealed: A Man of His Century, admits she doesn't think Harry will give up his LA life, but says the Queen is "always willing to forgive."
The Duke and Duchess of Sussex announced their decision to step down as senior members of the Royal Family in January 2020, and officially left their positions in March.
Before the couple moved on to sunny California, the pair agreed to continue uphold the values of the Queen, but were prohibited from attending any further functions in Her Majesty’s name.
The pair then moved stateside, via Canada, and struck up a multi-million dollar deal with U.S. streaming giant Netflix.
Prince Harry has faced public scrutiny for the deal, and has even been accused of trading in his Royal connections for opportunities.
Royal biographer and Editor in Chief of Majesty Magazine, Ingrid Seward, told Daily Star Online Harry’s Royal connections "are the only thing he’s got" and added, "it’s who he is."
Ms Seward said: "The trouble with Prince Harry is that his Royal connections are the only thing that he has got.
"I mean that is Prince Harry, so he can’t trade on anything other than those connections, it’s who he is.
Despite this, Ingrid believes the Queen is a “very very forgiving person” and would be “totally happy’ to accept the Duke and Duchess of Sussex back.
She said: "The Queen is a very very forgiving person, she deeply believes in forgiveness and not holding grudges and I think she would be totally happy to accept Prince Harry and Meghan back in the Royal fold.
"But it isn’t going to happen, we know that now."
Ingrid also said she thinks the Her Majesty views Prince Charles ' youngest "a bit like the prodigal son" and is willing to "forgive" but "she may not forget."
The prodigal son is a reference to Luke 15:11–32 in the bible, and tells the story of a boy who did everything wrong and then came back home to acceptance.
She said: "Everyone thinks this is the end, he is walking away, but I think the Queen views Prince Harry a bit like the prodigal son.
"There’s a story in the bible about the prodigal son, a boy who did everything wrong and then came back and his father accepted him back, I think that’s how the Queen views it.
"She’s always willing to forgive, she may not forget, but she is willing to forgive.
"I think Prince Philip has washed his hands of it now, there is very little they can do, they just have to let him get on with it."