Prince Harry is reportedly due to fly to the UK next month, and it looks like something may have shifted within the royal family.

Sources have hinted King Charles is “desperate” to see his grandchildren, Princess Lilibet and Prince Archie, says Royal Commentator Josh Rom. Mr Rom. pointed out the last time the King saw Princess Lilibet was before the death of Queen Elizabeth II. “It’s kind of being hinted at by sources that ever since his cancer diagnosis, King Charles is ‘desperate’ to see his grandchildren,” Mr Rom. told Sky News Digital Presenter Gabriella Power. Mr Rom. noted tensions between the monarch and his son Prince Harry have “warmed somewhat”. “Things are not quite so tense between the King and Prince Harry.”

King Charles is reportedly hoping to act as a middleman between his sons Prince Harry and Prince William.

Rumour has it that Harry is set to travel to London in May to celebrate the 10th anniversary of the Invictus Games.

New reports suggest that both Harry and William are looking to “put the past behind them” and, according to the New York Post, King Charles plans on playing “peacemaker” at their first meeting.

Palace sources claim that Charles has given Harry the go-ahead about a potential meetup with the Prince of Wales.

King Charles. Picture: Royal Household via Getty Images

“It is very likely that Harry and William will see each other next month and anything is possible. The King will want the brothers to patch things up so it’s more than likely that he could play peacemaker,” a source told Sky News Australia.

While Harry’s rumoured trip is still unconfirmed, it’s believed that celebrations will take place at St Paul’s Cathedral. It’s unclear if the trip will be yet another solo venture, following hot on the heels of his mad dash home in February.

Queen Camilla, King Charles, Prince William and Catherine, Princess of Wales. Picture: Chris Jackson / AFP

It’s currently unknown whether Meghan Markle will take the trip to the UK with Harry, or whether she’ll stay in America. Picture: The Kinsey Collection/Instagram.

It’s believed that the Duke did not see William, the heir to the throne, during his blink-and-you-miss-it 24-hour trip to London.

What’s more, Harry stayed at a luxe London hotel rather than with family at one of their many royal residences peppered across the country.

The Waleses have had a years-long rift with the Sussexes, but last month it was reported that the pair may be looking to bury the hatchet once and for all.

The late Queen Elizabeth II’s will likely remain sealed from the public for a very long time, but it’s safe to assume most of her estate will be going to one very lucky member of the royal family.

The Prince and Princess of Wales have reportedly asked the Sussexes to bring their children with them the next time they visit the UK, but, apparently, Meghan has politely passed up on the offer. Sources, however, deny the new report.