The Duke and Duchess of Cambridge Will and Kate have finally registered the birth of their son Prince George with an official birth certificate.

According to the Daily Mail, the occupation written in by Prince William and Kate Middleton was Prince and Princess of the United Kingdom. The birth register entry for the third heir to the throne was signed by Prince William at Kensington Palace on Friday morning.

The royal baby Prince George was born last week Monday in the Lindo WIng of St. Mary's Hospital in London. His name was announced two days later.

The Daily Mail reported that while most new parents have to travel to a register office to formally register the birth of their child, Westminster City Council registrar Alison Cathcart travelled to Kensington Palace for Prince William to fill out the paper work.

In a brief statement from the palace, it was revealed that, "The Duke and Duchess of Cambridge have formally registered the birth of Prince George.

"The Duke of Cambridge signed the birth register at Kensington Palace this morning, witnessed by a Registrar from Westminster Register Office."

The birth certificate was filled out by the registrar and then signed by Prince William, the document states the date and place of Prince George's birth along with his full name, His Royal Highness Prince George Alexander Louis of Cambridge.

Along with the royal baby's full name, that of his parents can be found on the birth certificate as well. It names his father as, His Royal Highness Prince William Arthur Philip Louis Duke of Cambridge, as well as his birth place in Paddington, Westminster with his occupation listed as Prince of the United Kingdom.

Whereas his wife is identified as Catherine Elizabeth Her Royal Highness, The Duchess of Cambridge, with her occupation described as Princess of the United Kingdom. Her place of birth is listed as Reading, and her maiden name of Middleton is also seen on the document.

Cathcart has been Westminster City Council's superintendent registrar for 22 years and has presided over several celebrity marriages including Sylvester Stallone, Joan Collins, Barbara Windsor and comedian David Walliams, according to the Daily Mail.

[For more picutres of Prince George and his birth certificate click HERE]

After the documents were signed she said, "It was of course a great pleasure to work with Kensington Palace in arranging the signing of the birth certificate for Prince George.

"This cements an association with Westminster City Council and royal births in the borough that goes back decades. We registered the birth of the Queen and Prince Charles and Princes William and Harry so it's great to see that tradition continue.

"We can now add Prince George to that collection and again congratulate the Duke and Duchess on the birth of their son."