Here's what we know...
The two brothers were rumoured to have been the ones to part ways, all stemming from a reported hesitance to accept Harry and Meghan’s fast-paced relationship, from William’s side.
The speculation only grew louder when the two royal couples split from each other on Instagram earlier this year, something that millennials in particular took to mean that there had been a serious falling out.
While some insisted the split was simply down to succession, there were still rumours of a falling out.
According to a royal expert, Prince William and Prince Harry didn’t see each other for six months after the royal wedding, despite at the time, living in the same Kensington Palace area.
Yes, according to The Sun’s Emily Andrews, while the couples saw each other in public settings, they did not see each other behind closed doors, explaining: ‘I was told, after the Royal Wedding, Harry and Meghan didn’t see Kate and William personally’.
She continued: ‘I think behind the scenes, Harry and William’s relationship has always been up and down actually but of course, we’ve never really seen that.’
It does seem however that the worst is over now, with Kate Middleton and Meghan Markle said to be making an effort to bring their husbands together.
Kate Middleton and Prince Harry have made public appearances together since, but Meghan Markle and Prince William have not been seen attending the same official event since baby Archie’s Christening in July.
Next week however, the two royals will be reuniting for their first official event in months, with all four members of the Fab Four set to attend the Festival of Remembrance on 9 November at the Royal Albert Hall.
Also expected to be in attendance are the Queen, Prince Charles and Camilla, Duchess of Cornwall, so it’s set to be a family reunion all round.