The Duke of Sussex this week launched a series of attacks on his family in his bombshell book Spare.
He claims he was attacked by his brother the Prince of Wales and accused the Queen Consort of leaking stories to the press.
But now, royal sources believe peace talks could take place in the coming months, with Harry flying over from the US to meet King Charles and Prince William.
One source believes the relationships are “fixable” but are “going to take flexibility on all sides.”
They told The Sunday Times: “It needs Harry over here, in the room with the King and Prince of Wales and a couple of other family members.
“Both sides need to hold their hands up and admit we didn’t get everything right, and we got a lot wrong.
Another source added: “They have to invite them in before the coronation, or it will become such a circus and distraction.”
It comes after Prince Harry revealed he does want to go to the coronation but insisted “the ball is in their court”, in one of his interviews to promote the book.
He told Tom Bradby: “There’s a lot that can happen between now and then.
“But, the door is always open. The ball is in their court.
“There’s a lot to be discussed and I really hope that they’re willing to sit down and talk about it.”
But The Sun this week revealed that senior royals did not want him at the event because they fear what they say will “end up in paperback”.
A source explained: “There have been discussions among the family, including Edward and Anne.
“They do not want private conversations at the Coronation making it into the paperback edition of Spare.”
The concern comes after an online survey for The Sun revealed 78 per cent of 31,300 readers want the California-based couple to stay away from the historic day.