It comes after Princess Diana’s biographer Andrew Morton told The Mirror’s podcast, ‘Pod Save the Queen’, now ‘Pod Save the King’ that William and Harry’s mother would be “mortified” by what has happened between them.

He said: “There is no question about it, she’d be mortified that William and Harry have got themselves into this emotional tangle. She always said to me on numerous occasions that Harry was William’s wingman, that he was the second boy born into the Royal Family.”

Harry and Meghan hit headlines when they announced they were stepping back as senior working royals in 2020, and then eventually relocated to Montecito, California where they reside with their two children, Prince Archie and Princess Lilibet.

The relations between Prince Harry and Prince William appear to remain icy despite their latest in-person meeting at the funeral reception for their uncle, Lord Robert Fellowes in August.

The vicar who held the funeral reception for Lord Robert Fellowes said he does not recall seeing the royal brothers speaking to each other.

Prince Harry flew from his home in the US to join his brother at St Mary’s Church in Snettisham, Norfolk and the memorial service took place close to the royal Sandringham Estate.

Reverand Tansey told the Sun: “It was only as I was greeting the congregation on the way out that Prince William was shaking my hand, and then very quickly after Prince Harry did too.

He commented on the lack of interaction between the two brothers at the reception afterwards, saying: “I don’t recollect them speaking to each other but there were a lot of family members and friends speaking to them.”

It was the first time that the brothers had appeared in the same room together since May 2023.