King Charles and Prince Harry have very little chance of ever resolving their feud if the pair can’t resolve their disagreement over one issue in particular

King Charles is finding it impossible to stop holding a grudge against Prince Harry despite loving his son, a Royal expert has claimed.

A new report suggests that while the King obviously adores his son he is unable to forgive him for what he wrote about his family in his memoir Spare. Now Royal biographer Christopher Andersen has admitted that he believes it may be impossible for Charles to ever see past Harry’s perceived discretions.

The situation is made even more difficult because of Harry’s critique of Camilla according to the expert. Andersen said: “I think people have to realise that the one thing that Charles finds unforgivable is criticism of Camilla.”

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READ MORE: Prince Harry reveals biggest regret about Princess Diana as he ‘wishes he’d apologised’

King Charles and Prince Harry have a strained relationship at best ( 
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Talking to Fox News Digital, Anderson said that “no criticism” of Camilla could be deemed acceptable and that “unfortunately for Harry” he has said “some pretty devastating things about her.” He said: “Prince Harry made it clear that he felt she was the villain in the piece.

“I think that still bothers the king, and I don’t know that it will be easy for him to [forgive]. I don’t think they’ll ever forgive Harry for that.” He added that Harry still “resents” Camilla and that until that is resolved the Duke “is on his own.”

The report comes after Royal commentator Lizzie Cundy hit out at Harry after he decided not to mark Father’s Day with a public message for his father. She said: “I thought it was very poignant that Prince William sent this beautiful post. It shows the bond they still have and the respect he has for his father, and there’s Harry, very noticeably absent.

Harry has previously been scathing about Camilla ( 
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Talking to GBN America Lizzie continued: “Let’s not forget, this is a 75-year-old man suffering with cancer, going on with all his duties, at Trooping the Colour he was stood there in the pouring rain. You just think, ‘Wow, this man is absolutely incredible’, he is everything Harry isn’t.”

Lizzie then gave her damning verdict that Harry’s behaviour has gone too far and while she did admit nobody knows if the Duke of Sussex celebrated his father in private, his actions are beyond reproach in her view. She concluded: “Harry just seems to have lost the plot. And how hurtful indeed not to even send a Father’s Day message. We don’t know if he did it privately.

“Normally, Harry and Meghan are very vocal, but if they can’t post a Father’s Day message, that’s unforgivable.”