The children were previously listed as "master" and "miss" before being referred to as "Prince Archie of Sussex" and "Princess Lilibet of Sussex." This recognition also brings changes to the line of succession, with Archie now sixth in line and Lilibet seventh. However, the couple's children remain below Prince William and his three children in the line of succession.
While this move may help ease tensions between the Sussexes and the royal family, it may also anger some royalists who believe the couple should drop their titles.
The eligibility for the princely titles was based on the 1917 Letters Patent and became effective on September 8, upon Charles's accession to the throne after Queen Elizabeth's death.
It was reported that Charles wanted to allow Archie and Lilibet to use their royal titles before the release of Harry's memoir, and discussions about the matter were held in late 2022.