Prince William and Prince Harry could finally reunite at a "significant" event, a royal author has claimed.
Speaking to HELLO!, royal expert Robert Jobson said that the two brothers, who are believed not to have been in contact for the past two years, could be seen "on the same stage" once more.
Robert believes William, 44, and Harry, 41, will reunite to mark the 30th anniversary of the death of their late mother, Princess Diana, on 31 August 2027.
He says the poignant occasion will be "quite significant", adding: "How can they not be together?"
© Getty ImagesRobert told us: "The 30th anniversary is going to be quite significant, I think. The ownership of the Diana legacy is something I think Harry has been really pursuing; he's been to Angola, he's done more stuff in landmines as well.
"There’s going to be a moment where there has to be some form of arrangement for the 30th anniversary of Diana’s death. How can they not be together?
"They have to be on the same stage. I think that we're going to see more of Harry trying to take over the ownership of Diana’s legacy, which is bound to irritate his brother."
The late Princess of Wales died in a car crash in Paris aged 36 in 1997. Earlier this week, her brother, Earl Charles Spencer, announced he is publishing a memoir, Swan Song, in her memory.
How William reacted to news of Prince Harry's return
Prince Harry and Meghan Markle touched down at Birmingham Airport on Wednesday, after it was revealed last week that they would be returning to the UK for an "extended stay".
Prince Archie, seven, and Princess Lilibet, five, will be starting at British schools in September, while Harry is expected to continue his charitable commitments and Meghan, her As Ever brand.
© UK Press via Getty ImagesSpeaking of William's likely reaction when he found out about the move, Robert said he must "be feeling slightly aghast".
It's been reported that William was with his father, King Charles, at Balmoral Castle in Scotland when news of the return was made public to the world.
The royal expert added: "The prodigal son coming back will be difficult for him. Harry's move puts pressure on him to act in a more pragmatic way."
King Charles pictured for the first time after Harry's return
On Thursday, the King was pictured for the first time after his son arrived back in the UK.
He was photographed driving at Balmoral, wearing a crisp checked shirt and beige overcoat.
Charles was at the wheel of his Range Rover, while Harry and Meghan settled into their new home in the UK.
The King is continuing his stay at the Aberdeenshire retreat, though he will return to London next week to meet the Pakistan Cricket team at Clarence House.
