The Duke of Cambridge signs Prince Louis' birth register

Prince Louis

Royal baby named Louis Arthur Charles

It states Louis was born at St. Mary's Hospital in London and has "Prince and Princess of the United Kingdom" listed underneath his mother and father's occupation.

The Duke and Duchess of Cambridge are both now taking some time off from royal engagements following the birth of their son.

Prince Louis' name is officially official as his parents, Prince William and Catherine, Duchess of Cambridge (aka Kate Middleton) have filed his birth certificate.

Proud dad Prince William signed the birth certificate on Tuesday at Kensington Palace.

On Monday, April 23rd, the Duke and the Duchess of Cambridge took to the stairs of the Lindo Wing at St Mary's Hospital in Paddington, London to officially introduce the world to their third child.

If you thought a royal birth certificate might be fancier than usual-say, hand-printed in gold ink on ivory card stock-think again.

"This follows a long history of Westminster City Council registering royal births, including Prince Louis" siblings Prince George and Princess Charlotte'.

The official document gives the newest member of the royal family's official name (and it's a mouthful): His Royal Highness Prince Louis Arthur Charles of Cambridge.

"It has been a great honour to register, and formally welcome the latest addition to the Royal Family, Prince Louis Arthur Charles", Westminster City Council Registrar, Patricia Gordon, said.

"The baby will be known as His Royal Highness Prince Louis of Cambridge".

The news was announced Friday morning in a press release from Kensington Palace which read: "The Duke and Duchess of Cambridge are delighted to announce that they have named their son Louis Arthur Charles".

Latest News