Earlier this year, some details from his birth certificate were highlighted—especially in comparison to those of his siblings. His full name is listed as His Royal Highness Prince Louis Arthur Charles of Cambridge, much like George and Charlotte, whose names appear as His Royal Highness Prince George Alexander Louis of Cambridge and Her Royal Highness Princess Charlotte Elizabeth Diana of Cambridge, respectively.
Wishing Prince Louis a very Happy 7th Birthday! 🎂
📸 Josh Shinner pic.twitter.com/0qvHq5M6gJ
— The Prince and Princess of Wales (@KensingtonRoyal) April 23, 2025
Since William inherited the title of Prince of Wales following Queen Elizabeth II’s passing in 2022, their titles could now also be styled with “of Wales” instead of “of Cambridge”.
Interestingly, all three birth certificates list their mother as Her Royal Highness Catherine Elizabeth, The Duchess of Cambridge, and their father as His Royal Highness Prince William Arthur Philip Louis, Duke of Cambridge.
However, there is one notable difference between the documents: George’s and Charlotte’s birth certificates were handwritten and signed, while Louis’ appears to have been typed and digitally signed by a different registrar.
As reported by Town & Country, this may simply reflect a change in preference by the registrar at the time, or possibly updated procedures within the office over the years.
12
