The Duke and Duchess of Cambridge are now on the stops of St Mary's Hospital, introducing their new son to the world's media.
'He's got a big pair of lungs," Prince William said. "He's a big boy. He's quite heavy."
The world's media is still waiting for its first glimpse of the future King of Britain.
It's believed the Duke and Duchess of Cambridge are due to leave hospital but have been waylaid while they say goodbye to staff.
Kensington Palace has confirmed the couple would be leaving tonight, with a spokesman saying: "The Duke and Duchess of Cambridge and their baby are expected to leave hospital later this evening."
The Queen has said she is "thrilled" at the arrival of her great-grandson, according to a guest at a Buckingham Palace reception tonight.
Our reporter Divya Kohli takes a trip through time to look at the other royal babies with links to our region. She speaks to Anna Spender, Co-ordinator of Hever Castle, and royal historian Hugo Vickers in this special feature.
ITV News understands there will be no announcement of a name for the royal baby when he leaves St Mary's Hospital today.
The Duke and Duchess of Cambridge and their baby are expected to leave hospital "in the next twenty minutes", sources say.
The Prince of Wales described his new grandson as "marvellous" as the Duke and Duchess of Cambridge prepared to leave hospital with their baby.
The proud grandfather and his wife the Duchess of Cornwall travelled from East Yorkshire, where they had carried out a string of engagements, to see the baby and his parents William and Kate.
Charles and Camilla spent almost 30 minutes with the Cambridges and the baby prince in the Lindo Wing of St Mary's Hospital in London.
The Middleton family home, the village of Bucklebury in Berkshire, remains the centre of the international media spotlight tonight. Kate and Prince William have spent the last week before the birth here and only left on Friday for London.
Divya Kohli reports from the village and speaks to Barry Dickens of Bucklebury Town Council, priest Julian Gadsby, and local shopkeepers Hash Shingadia and Lynda Tollitson.
It could be any time now for that first glimpse of the Royal baby. The Duke and Duchess of Cambridge are due to leave hospital later this evening.
The baby boy, the Prince of Cambridge, was born at 4.24 pm yesterday - and is third in line to the throne. We now have three future kings. Phil Hornby reports and speaks to royal watchers from across our region.
A baby girl in Basildon has received a royal welcome, after she was born at exactly the same time as the Prince of Cambridge.
And - quite appropriately - she's been named Kate.
Mum Natia Kavelashvili - who gave birth at Basildon University Hospital yesterday - had never thought that she might share her big moment with the Duchess of Cambridge.
The mum of two, from Langdon Hills, Essex, said: "I was being prepared to have a caesarean earlier in the day, but there was an emergency so my caesarean was delayed for a while.
"It is strange to think that this meant I ended up having my baby at 4.24pm."