The text on Louis' birth certificate was typed, while Prince George and Princess Charlotte's were handwritten.
Though the writing on the birth certificates is one major difference, the rest of the details are almost exactly the same. Louis’ birth was registered in the London district of Westminster, as were George and Charlotte’s.
The reason the third royal baby's birth certificate is typed is presumably because previous Westminster deputy registrar Alison Cathcart received death threats over her 'messy handwriting' on Prince George and Princess Charlotte's birth certificates.
In a 2014 interview with the Daily Mail, she said: 'I got death threats. One person said their cat had better handwriting, someone called for me to be fired and someone even said I was illiterate.'
She added: 'Let's just say I had to have more than one attempt. What can I say? It was a very hot day and I was flustered and trying to fill this thing in with Prince William sitting beside me.'
Louis' document has been typed up which may have been an attempt to avoid a similar situation.
This article originally appeared on New Idea.