It's no secret that relations between Prince William and Prince Harry are still icy.
The once-inseparable brothers have had a strained relationship since Harry and Meghan decided to leave life in the UK, and as working royals, behind and start afresh across the pond.
The many public statements the couple made about their time inside the monarchy - and the allegations they have made against other senior royals and their staff, have compounded the existing distance between the brothers.
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Prince William - a famously private man - is celebrating his 43rd birthday, leaving behind what he has called a "brutal" year that was one of the "hardest" he has experienced.
With both his father King Charles and his wife,Princess Kate, going through cancer treatment, William had to walk a delicate balancing act: supporting his family behind closed doors, whilst still keeping up with as much of his royal duties as possible during this time of personal hardship, all whilst under the huge amount of scrutiny that comes with being part of the House of Windsor.
A source has revealed to the Sunday Timesthat these challenges aren't the only thing William is leaving behind as he turns 43 - he has also learned to let go of his "anger" towards his younger brother.

After the release of Harry's bombshell memoir Spare - in which he accused his older brother of physically assaulting him in Kensington Palace in 2019, during a disagreement over Meghan - William was reported by pals to be "burning" with rage over the book, which broke records for copies sold.
However, these days, just over two years on from Spare's release, it's a completely different story, a friend has revealed.
"What has struck me the most recently is that he just doesn’t mention it at all," the source was quoted as saying.
'It used to be that the family stuff was taking up a lot of space in his head, it was a very close relationship and he was very upset. But he’s not letting it get to him at all anymore. It is a change. It’s sad, but it’s a much healthier space for him to be at."
Harry recently publicly appealed for reconciliation with his family admitting that his father Charles "won't speak" to him over his row with the Home Office regarding the removal of his automatic police security.
The Duke of Sussex also claimed in the sit down with the BBC that he doesn't "know how much longer my father has" and noted that he knew "some members of my family will never forgive me for writing a book. Of course, they will never forgive me for lots of things."
Recent reports that Meghan and Harry want their two children Prince Archie, six, and Princess Lilibet, four, to have the royal style of 'HRH' are also reported by the Sunday Times to be confusing to royal insiders. The Sussexes are reported to want these styles so their children can choose to be working royals in the future if they want, but "under the next reign, roles for Archie and Lili as working royals are unlikely."
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