On Tuesday, William and Kate, formally known as the Duke and Duchess of Cambridge, signed the birth register at their Kensington Palace home in central London in front of an official from Westminster Register Office

UK's Prince William and Kate register new son Louis's birth

The royal baby was born on Monday and is fifth in line to the throne.

Duke and Duchess of Cambridge name their newborn Louis Arthur Charles

'The baby will be known as His Royal Highness Prince Louis of Cambridge,' Kensington Palace said in an announcement

Prince William and Kate name baby son Louis Arthur Charles

Prince Harry will be getting married to Meghan Markle at St George's Chapel, Windsor on May 19th, 2018

Britain's Prince Harry asks elder brother Prince William to be his best man at the wedding

The boy, the couple's second son, now fifth in line to the throne, weighed 8 lbs 7oz (3.8 kg)

Watch: First glimpse of Kate Middleton, Prince William's baby boy

The boy, the couple's second son, weighed 8 lbs 7oz and William was present for the birth

Watch: Kate Middleton,wife of UK's Prince William, gives birth to baby boy

A fiery exchange in parliament between May and opposition leader Jeremy Corbyn underlined tension in Britain over Prince Mohammed's trip

Theresa May defends Saudi ties as crown prince gets royal welcome in London

The visit by the second in line to the throne "is at the request of Her Majesty's government

Prince William to visit Palestinian Territories, Israel this summer

Only 16 years later did he seek help from mental health professionals after 'huge support' from his older brother, Prince William

Prince Harry suffered 'total chaos' over Diana's death

The statue will be located in a public garden at Kensington Palace

UK princes commission statue to honour late mother Princess Diana

The pictures were reported stolen by The Sun and included shots of her sister Kate who is married to Prince William

Pippa Middleton's iCloud account hacked, royal photos stolen: Report

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