Prince Harry is weighing a return to the United Kingdom with Meghan Markle, Prince Archie and Princess Lilibet, as he seeks to repair a prolonged rift with King Charles III and Prince William, according to people familiar with his thinking, with the children emerging as what one insider described as a "secret weapon" in efforts to thaw relations.

The Duke of Sussex, who has been estranged from his brother for more than three years, believes that facilitating meaningful contact between his children and senior royals could shift entrenched dynamics that have resisted reconciliation since his departure from royal duties.

"Harry truly believes the kids are the key to fixing everything," one insider said, adding that he is convinced that once his father and brother "really meet Archie and Lili properly and spend some time with them" their presence will "melt everyone's hearts and change things overnight."

The potential visit hinges in part on the outcome of Prince Harry's ongoing legal challenge over security arrangements in the UK, a dispute that has complicated previous attempts to bring his family back for extended stays. A favorable ruling, those close to the matter say, could enable a summer visit involving Meghan and their children.

The last time the Sussex family traveled to Britain with Archie and Lilibet was during the Platinum Jubilee in 2022. That trip, which coincided with Lilibet's first birthday, included a small private gathering at Frogmore Cottage, though neither King Charles nor Prince William attended.

Behind the public disputes over titles, media coverage and institutional criticism lies what aides describe as a quieter strain within the royal family. King Charles, who maintains close relationships with Prince William's children-Prince George, Princess Charlotte and Prince Louis-has had limited in-person contact with his grandchildren based in California.

One source described Prince Harry as "tormented" by that distance, saying he struggles with the reality that his children "don't know their grandfather at all." The same source added that Harry believes Archie and Lilibet "deserve to know where they come from and make memories with their grandfather while they still can."

The question of whether the children could influence Prince William's stance remains more uncertain. The Prince of Wales has not publicly addressed the rift but is widely reported to remain deeply affected by the couple's 2021 interview and subsequent disclosures, including Prince Harry's memoir published in 2023.

People familiar with the dynamics say Prince Harry is relying in part on shared experiences of parenthood to soften tensions. As a father of three, William may respond differently to in-person interactions between the next generation of the royal family.

One insider suggested that once William and Catherine, Princess of Wales, spend time with Archie and Lilibet, it could become "much harder" to maintain distance from the Sussex household.

Meghan Markle is said to support efforts to reconnect but remains cautious about expectations, reflecting concerns that emotional and institutional divisions built over several years may not be easily resolved.