PRINCE George and Princess Charlotte have left the hospital after meeting their new baby brother when hundreds of devoted royal fans are still outside St Mary waiting for a glimpse of the new prince.
In a statement released Monday afternoon, Kensington Palace confirmed George and Charlotte were now home again after meeting their new baby brother.
Catherine, Duchess of Cambridge, will leave St. Mary's Hospital in the coming hours presumably with her newborn son.
"Your Royal Highnesses would like to thank all the staff at the hospital for the care and treatment they have received," said Kensington Palace statement.
"They would also like to thank everyone for their warm wishes."
Prince William arrived on St. Mary's Hospital with her older children on the trail to introduce Princess Charlotte and Prince George to their newborn baby brother.
Prince William left St. Mary's Hospital five hours a Fter birth of her third child, promising to return soon.
William said "back in a minute" when he got out of the hospital just after 16:00 local time, waved on collected media and wellwishers and drove out into a waiting Land Rover
The four-year-old Prince George stretched out the staircase of the Lindo wing, holding on to his father's hand while Princess Charlotte, who becomes 3 next week, returned to the wave.
Wilhelm's wife, Duchess of Cambridge's birth, gave birth to a son just after noon. 11.00 Monday local time.
The British Prime Minister Theresa May has offered "Warmest Congratulations" to Prince William and the Duchess of Cambridge at the birth of their new son.
May says that "I wish them great happiness for the future."
The couple's Kensington Palace office says that Kate was born at 11:01 am-time for a boy weighing eight pounds, seven ounces (3.8 kg). The baby is the third child of the couple and is fifth in line with the throne.
The news brought a bowl of dedicated royal observers outside London's St. Mary's Hospital, where a self-proclaimed city warrior proclaimed the birth. The words "it's a boy" was blinked in light around the top of London's BT tower, as seen in miles.
Prince William was present for his son's birth, which is fifth in line with the throne.
The castle says: "The Queen, The Duke of Edinburgh, the Prince of Wales, the duchess of Cornwall, Prince Harry and members of both families have been informed and looking forward to the news."