King Charles III reportedly gave Prince Harry's family a peace offering.
The monarch offered the couple their children's HRH titles as a truce.
The King reportedly approved their titles after Queen Elizabeth's death.
The Duke and Duchess were previously concerned about their children's birthright.
The couple allegedly believed the King would not approve the HRH titles.
Prince Harry's children were set receive the title after King Charles took the throne.
However, their titles remained as "Master" and "Miss" on the royal website.
The royal sources confirmed that the new titles would be updated soon.
King Charles and other prominent royals did not attend Prince Harry's daughter's christening.