One big difference

That said, there are some noticeable differences in the formatting of Louis’ birth certificate compared to those of his older siblings—the most striking being how the registrar signed the document.
For his 11-year-old brother, Prince George—who is also the future King—and nine-year-old Princess Charlotte, their birth certificates were completed entirely by hand. Each section was carefully filled out using pen and paper.
Interestingly, the same registrar seems to have signed both documents, as the handwriting appears identical on each.
However, Louis’ birth certificate was processed differently. Instead of being handwritten, the details were typed on a computer, and a different registrar handled the filing.
According to Town & Country, this difference may simply come down to a “matter of preference” by whoever holds the position at the time, whether they choose to type or write it out by hand.
“Or perhaps protocols have changed within the registrar’s office over the past few years.”
Who knew?