Prince Harry has been advised to avoid "more ugliness" and demonstrate "discipline" if his apparent desire for reconciliation with King Charles is to succeed.
The warning comes as it emerged the Duke of Sussex has made several overtures towards reconciliation with the Royal Family in recent months.
In July, representatives of Prince Harry and King Charles were pictured at a secret sit down in what appeared to be peace talks.
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Later, it was revealed Harry had offered to share diary dates with the Royal Family in an apparent attempt to avoid potential engagement conflicts.
Most recently, it emerged that Harry had had a wreath laid to mark VJ Day along with a signed personal message to his late grandfather, Prince Philip, at an event attended by the King.
Prince Harry has been advised to avoid 'more ugliness' if he wishes to reconcile with the Royal Family
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Public relations specialist Eric Schiffer, who chairs Reputation Management Consultants, believes the overtures presented a "path" to rapprochement for Harry, adding: "I think does want it."
He believes Charles would also be seeking a return to harmony, adding: "I think the king would rather have smoother relations in a way that assists the monarchy."
However, the expert felt Harry could not hope to rebuild the bridge if he did not keep his media appearances in check.
"I do see reconciliation happening but its going to take time and more patience and consistent discipline by Harry," Mr Schiffer said.
Harry has appeared to make overtures towards his father, King Charles, in recent months
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The specialist asked: "Can he do that or will there just be some more monetization where he's going to spew some more ugliness?"
Mr Schiffer was referring to a series of high profile interviews the Duke of Sussex has given in which he was critical of the Royal Family.
Most recently, he spoke to the BBC in May in which he expressed a desire for a "reconciliation" but claimed his father "won't speak to me" among other explosive comments.
The Duke, alongside his wife Meghan Markle, also made headlines with their bombshell Oprah interview in 2021 and the record-breaking Netflix documentary covering their exit from royal life.
The Duke of Sussex has taken part in several damaging interviews in which he criticised the Royal Family
|BBC
The couple recently signed a new deal with Netflix but there has yet to be any word on a sequel documentary despite the streaming giant’s championing of its success.
While speaking with Newsweek, Mr Schiffer felt time would tell on Harry’s new "discipline" but had hope for
"I don't think it's as long of a shot as people say and I think it would be good for both of them," he said.
In recent months, Harry has refrained from launching fresh attacks against his father, though his next British visit will serve as a crucial indicator of their relationship's trajectory.
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The fate of the current attempts at reconciliation between Harry and King Charles remains to be seen
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Whilst no official confirmation exists regarding his travel plans, the Duke typically attends London's WellChild Awards, traditionally held in September.
The monarch's schedule that month includes hosting President Donald Trump's state visit to Windsor Castle from September 17-19, an engagement that would have previously involved Harry's participation.
Should the Duke travel to Britain in September, optimal timing outside the state visit period would significantly improve his prospects of securing an audience with his father.