After months of speculation, it has finally been confirmed that Prince Harry will be there to support his father King Charles on one of the biggest days of his life.
It was announced that Harry will be in Westminster Abbey for the King's Coronation service in just under three weeks' time - but it will be a solo appearance.
His wife Meghan Markle is staying behind in California with their two children Prince Archie, who celebrates his fourth birthday that day, and Princess Lilibet.
It means Harry may have to face the music alone as it will be the first time he has publicly been seen with royal relatives who bore the brunt of his attacks in his Netflix series and controversial memoir, Spare.
Emotional goodbye to 'forever home'
Although it is not exactly clear where Harry will stay on his Coronation trip, it has been reported he will use Frogmore Cottage in Windsor one final time.
The cottage was a gift from the late Queen to Harry and Meghan after their 2018 wedding and they set up home there after extensive renovations were carried out.
However, after just six months they made the shock decision to quit as working royals and started a new life in North America.
At first, they kept on Frogmore Cottage but have only used it a handful of times and earlier this year, it was confirmed they had been "requested to leave".
It is believed they must empty the property by the summer meaning it will be available for one last stay by Harry for the Coronation.
And if he does indeed use the cottage in a few weeks, he will be staying just 700 yards from his estranged brother Prince William, who lives at Adelaide Cottage on the Windsor Estate.
No reunion with William
But despite the potential proximity of the two brothers, it has been reported that they will not have a reunion.
William had several allegations levelled against him in Spare by Harry including that he attacked his younger brother during an altercation and was branded his "arch-nemesis".
According to The Telegraph, William is still understood to feel betrayed by the revelations featured in Harry's book.
And now it is said there will be no time for the two brothers to potentially reunite in private during the Coronation weekend.
According to The Sun, King Charles had a "heart-to-heart" with Harry to clear the air - but his feud with William was not discussed.
Awkward meet-up
But it is not just William that Harry may have to face after criticising them, there are several other royals too.
One of them is Queen Camilla, who is also being crowned alongside her husband and came in for some strong criticism from Harry.
In Spare, he says he once pondered if she would become his "wicked stepmother" and says she would throw people under the bus to sit on the throne - and even turned his bedroom into her dressing room.
One of Camilla's great friends and supporters is the Marchioness of Lansdowne, who is godmother to Camilla's daughter Laura Lopes, and she has revealed to the Sunday Times that the new Queen was dismayed by Harry’s comments.
She said: "It was not stamping of feet or gnashing of teeth – it was much more of an eye-roll response.
"But of course, it bothers her, of course, it hurts, but she doesn’t let it get to her."
He will also have to face sister-in-law Kate, who he also talked about in the book, lifting the lid on disagreements she had with Meghan.
'House arrest'
Meanwhile, Harry faces living under "house arrest" after he was denied round the clock police protection for the King’s coronation.
He may be forced to be hole up inside his Frogmore Cottage base on the Windsor Castle estate over the bank holiday weekend and only leave to attend Coronation events with other royals.
Harry, 38, is engaged in a long running legal case with the Home Office at the High Court over the decision to strip him and his family of taxpayer funded security when visiting the UK.
Harry has been assured he will be protected when attending events with the royal family over the Coronation weekend, as he was when returning for the late Queen's Platinum Jubilee in the summer and Her Majesty’s funeral in September.
But he will have to provide his own privately funded bodyguards if he takes part in any social activity outside of the main events.
No procession or balcony place
However, there will almost definitely be no reunions for Harry with his royal relatives in the immediate aftermath of the Coronation ceremony.
It has been reported that both the procession from Westminster Abbey back to Buckingham Palace and the palace balcony appearance will be limited to working royals only.
This means there will be no place in these for Harry in what will be an roaring end to the Coronation event.
Limiting the balcony to working royals only mirrors the move by the late Queen, who did the same at Trooping the Colour at her Platinum Jubilee celebrations last year.
Meanwhile, Harry is not expected at the Coronation concert at Windsor Castle the day after King Charles' crowning or any other engagements.
Heading straight home
And with his public appearances more or less limited to the Coronation ceremony, it is believed the trip to the UK will be a very short one.
In fact, Harry may even fly back to California as soon as the Coronation is over so he can be there to celebrate son Archie's fourth birthday.
His birthday has been cited as one of the reasons why Meghan is staying at home and will not be attending the event - and it's likely Harry won't want to miss too much of the celebrations.
Royal editor Omid Scobie tweeted: "I understand that Archie's fourth birthday (also on May 6) played a factor in the couple's decision.
"Expect it to be a fairly quick trip to the UK for Prince Harry, who will only be attending the coronation ceremony at Westminster Abbey."