Majesty magazine editor Joe Little said to the Mirror, that it was "quite feasible" that the Duke of Sussex would have held this honorary position, had he remained a working royal.
The news comes a few months after Harry and Meghan were informed that they would be evicted from their grace and favour residence of Frogmore Cottage in the grounds of Windsor Castle.
Prince Andrew was offered the keys to the property in a move that suggests Harry's relationship with King Charles is showing no sign of improving following a turbulent few years for the family.
The decision is the latest in a long list of snubs the Sussexes have felt since they announced their desire to step back as working royals in 2020.
Yahoo UK explains what the Royal Family has removed from the Sussexes since they decided to they wanted to "work to become financially independent".
The loss of his personal security seems to have been the biggest blow Harry has received since quitting the UK.
In the recent six-part Netflix documentary series and his memoir, Spare, Harry has detailed his reaction to finding out that his security was being pulled just as the COVID-19 pandemic hit.
One media outlet, Harry said, had reported where the couple were living in Canada, so with borders being closed in an attempt to slow the spread of the virus, the couple felt like sitting ducks.
Harry wrote that it was "the ultimate nightmare. The worst of all worse case scenarios".
He also alleged that when the decision was made, Charles wouldn't take his calls and his brother William said there was "nothing to be done".
Despite, Harry claims, the head of his security team "pleading with his superiors" on 31 March 2020, the Sussexes had their protection officers pulled, and were left scrambling to find private security.
Harry has since launched legal action against the Home Office following a decision not to allow him to pay for police protection for himself and his family when visiting from North America.
A spokesperson said last year that the current situation renders him "unable" to come to the UK.
Harry has written in his memoir Spare about the frustration he felt at losing his patronages, and especially that it was framed as "an agreement" the couple made with the palace. Harry insists it was "nothing of the sort".
Certain patronages were removed from the couple when they stepped back as senior, working royals in the UK, though not all of them. Projects like the Invictus Games, which Harry set up in 2014, are still headed up by him because they are privately held patronages.
Patronages that were given to the couple by the Queen were handed back. This included Meghan's patronage of the National Theatre, which was subsequently handed to Camilla by the Queen in March 2022.
Harry was replaced as patron of the Rugby Football Union and the Rugby Football League by Kate. He also had to step back from the London Marathon Charitable Trust and relinquish his presidency of the Queen's Commonwealth Trust.
Harry and Meghan are still known as the Duke and Duchess of Sussex and it would take an act of parliament to remove their titles officially — something that hasn't seemed likely at any point so far.
They were stripped, however, of the style of HRH — His or Her Royal Highness.
They also had to leave the online branding of Sussex Royal behind, which they had used for their website and Instagram page.
This was because they wanted to make their own money and no longer be funded by the sovereign grant in the same way, which meant they couldn't be seen to be financially profiting from the word "royal" or their connection to the crown.
However, Harry has been associated from birth with the concept of being royal: it's where his large platform and fame comes from. So it was inevitable — at least in some ways — that he would financially profit from this connection, not allowing the Sussexes to use the word "royal" just means that this happens indirectly.
After a decade-long career in the armed forces, Harry held a significant number of honorary military associations and titles while he was a working member of the House of Windsor.
A year after he left, he was stripped of most of these and no longer holds the positions of: Captain General of the Royal Marines, Honorary Air Force Commandant of the Royal Air Force Base Honington, or Honorary Commodore-in-Chief of the Royal Naval Commands' Small Ships and Diving. These honorary titles reverted to the crown.
He was also refused the right to wear his ceremonial military uniform at the Queen's funeral and other mourning ceremonies — although he was permitted to wear it during the grandchildren's vigil, reportedly with the Queen's cypher removed. His uncle Prince Andrew's uniform still featured the cypher, on the other hand.
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