Prince Harry returned to the UK on Wednesday to undertake his last round of engagements in an official royal capacity before he and Meghan Markle formally step away from the Royal Family. The Duke and Duchess of Sussex are expected to go ahead with plans to become "financially independent" from the Crown once the new system agreed with the Queen, Prince Charles and Prince William comes into effect on March 31. But Harry has been warned his decision to leave his position will "close doors" to both him and Meghan as the royal couple seeks to forge international ties to support their non-profit project.
Max Foster, a CNN Europe correspondent who has been reporting on Meghan and Harry's upcoming departure, told Foreign Policy: "What you have to remember is that Harry’s grown up being able to ask for help, free help, from anyone pretty much.
"He can go to any government department and ask for help. He’s got access – doors are open to him.
"They won’t be open to him anymore."
Mr Foster predicted the Duke and Duchess of Sussex will have to "sell" their image to gather the support they need for their future pursuits but warned the royal couple "have no experience" in making business within the celebrity scene.
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He continued: "He’s going to have to sort of sell himself in the same way as other top celebrities sell themselves.
"And that’s hard. He doesn’t have experience with that. And the Duchess doesn’t have experience with that either, not at that level."
Harry and Meghan had hoped the Queen would allow them to continue using the Sussex Royal brand they had been building since marrying in May 2018 once they quit the Royal Family.
But in a statement issued last week, the Duke and Duchess confirmed they agreed to give up the brand despite insisting Her Majesty has no "jurisdiction" for the exclusive use of the word royal.
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Prince Harry headed back to the UK on Wednesday to begin his last round of engagements
The Duke and Duchess of Sussex will be officially quit the Royal Family on March 31
In the statement, the couple said: "While there is not any jurisdiction by The Monarchy or Cabinet Office over the use of the word ‘Royal’ overseas, The Duke and Duchess of Sussex do not intend to use ‘Sussex Royal’ or any iteration of the word ‘Royal’ in any territory (either within the UK or otherwise) when the transition occurs Spring 2020.”
However, the Companies Act 2006 strictly regulates the use of all royal insignia, arms and images relating to the Royal Family as well as the use of names associated with the Royal Family.
The act "prohibits companies (including overseas companies) and limited liability partnerships from being registered under a name which includes any of the sensitive words," included within a list of restricted names or expressions.
The regulation includes the terms Royal, Queen, King, Prince and Princess.
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The Duke and Duchess of Sussex last year made dozens of trademark applications at the Intellectual Property Office (IPO) under their proposed SussexRoyal foundation's name.
Prince Harry was away from Meghan on Wednesday as he embarked on one of his final royal engagements before the couple officially ceases being working royals on March 31.
The Duke of Sussex gave a speech on sustainable travel to delegates in Edinburgh, where he insisted on being called “Harry” rather than “Your Royal Highness”.
Ayesha Hazarika, the host of the event in the Scottish capital, told the gathering: "He's made it clear that we are all just to call him Harry."
On Friday, Harry will be attending a recording session with Jon Bon Jovi at the famous Abbey Road studios.
The rock star will record the official single of the Invictus Games which will take place in The Hague in May.
The Queen’s grandson will also make a solo appearance at the Endeavour Fund Awards to recognise the achievements of the Armed Forces Community on March 5.