The royal baby appeared to wave as he was introduced to the crowds outside the hospital for the first time.
The Duke and Duchess of Cambridge proudly showed the world their baby son, a future king, before taking him home tonight.
It's been revealed the new Royal parents and their new son will be making a family home at Anmer on the Sandringham Estate in Norfolk.
The Duchess of Cambridge has paid tribute to the "remarkable" work of children's hospices on a visit to Ipswich.
Kate, who is patron of East Anglia's Children's Hospices has made a private visit to the Treehouse hospice in the town.
The Treehouse hospice has six bedrooms for children and young people and accommodation for families to use for overnight stays.
There is also a multi-sensory studio, hydrotherapy pool, music room, play areas, sensory garden, a woodland walk and specialist outdoor play equipment
The Duchess of Cambridge has been retracing her grandmother's footsteps during a visit to Bletchley Park near Milton Keynes.
She was there to mark the completion of an £8m, year-long restoration project to create a visitor centre and new exhibitions.
The Duchess's grandmother, Valerie Glassborow, worked alongside the codebreakers in the 1940s.
Matthew Hudson's report contains flash photography.
The Duchess of Cambridge has helped launch the official British Americas Cup bid in London today.
She joined Sir Ben Ainslie, who will head Britain's crew at the next event in 2017.
But it could be one of the most familiar faces in Formula One who helps design the yacht.
Colchester-born Adrian Newey, from Red Bull Racing of Milton Keynes, has been sounded out to help Britain's bid to win yachting's America's Cup
Newey is the most successful designer in Formula One motor racing, having won world championships with Williams, McLaren and Red Bull.
The approach for Newey has come from Sir Ben Ainslie, Ainslie says that Newey is keen to help. He recently signed a new contract with Red Bull allowing him to work on new projects.
Anyone called George is being given free admission to Newmarket Racecourses on Saturday to celebrate the royal baby.
Georginas will also be admitted free of charge to The July Course at the Headquarters of racing.
Amy Starkey, Regional Director – East, of Jockey Club Racecourses, said: “Newmarket Racecourses, like the rest of the country, was thrilled with the birth of baby George to the Duke and Duchess of Cambridge."
The Duke and Duchess of Cambridge have decided to call their son HRH Prince George Alexander Louis of Cambridge, Kensington Palace announced.
Around half an hour after the visit from the Queen, William, Kate and their baby were seen being driven away from Kensington Palace.
The Duchess was sitting in the back of the vehicle next to the baby seat while the Duke was a front-seat passenger.
Dressed in a turquoise floral outfit, the Queen looked relaxed as she left Kensington Palace after spending just over half an hour with the Duke and Duchess of Cambridge's first child.
She had travelled to see William and Kate and their baby without the Duke of Edinburgh who is still convalescing at Windsor Castle following exploratory abdominal surgery last month.
The Queen has arrived at Kensington Palace to visit the son of the Duke and Duchess of Cambridge, ahead of her stay at Balmoral. It is the first time the Queen has seen her great-grandson since his birth on Monday.
The Duchess of Cambridge looked radiant as she presented her son to the world in a pale blue polka dot dress reminiscent of the pattern worn by Princess Diana on the day she left hospital with Prince William.
Kate stepped out of the Lindo Wing wearing a bespoke piece by Jenny Packham, a couturier who has become something of a household name thanks to the Duchess.
Observers were quick to draw parallels with the outfit worn by William's late mother when she posed on the same doorstep with her first-born son in a green spotted dress.
But where Diana appeared nervous and bewildered by the attention, a glowing Kate smiled broadly and spoke assuredly as she introduced her child to the world's press and the hordes of cheering well-wishers.