It’s a girl! Prince William’s wife Kate Middleton on Saturday gave birth to a baby girl as Britain raised a toast to the royal family’s new fourth in line to the throne.
The baby was “safely delivered” at 8:34 am local time (0734 GMT), Kensington Palace said in a statement.
William, the Duke of Cambridge, was present at the birth of his daughter, who weighs 8 pounds 3 ounces (3.7 kgs).
The palace added that the mother and baby are “doing well”.
The statement from Kensington Palace said, “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 are delighted with the news”.
The official notice announcing the new princess’ arrival has now been put up on an easel of the Buckingham Palace forecourt, as per royal tradition.
The couple later left the Lindo Wing of St Mary’s Hospital in London, carrying the newborn princess in front of hundreds of screaming well-wishers and the assembled crowd of photographers.
Kate wore a yellow patterned dress and cradled the sleeping baby wrapped in a white blanket in her arms.
William drove his wife and daughter to Kensington Palace in a black Range Rover after carrying the baby in a car seat.
The baby who assumed the title ‘Her Royal Highness Princess of Cambridge’ is the first to use the title princess since Princess Eugenie, 25, younger daughter of the Duke of York.
The last Princess of Cambridge was Princess Mary Adelaide, George III’s granddaughter, born 182 years ago in Hanover, Germany.
The Duchess of Cambridge was earlier today admitted to the Lindo Wing of St Mary’s Hospital in London, where her first baby Prince George was also born in July 2013.
The family will soon head to their country home, Anmer Hall, in Norfolk county of England to spend quiet time away from cameras.
The new baby is fourth in line to the throne, behind her grandfather Prince Charles, father Prince William and brother Prince George.
Congratulatory messages started pouring in soon after the birth of the baby was announced.
Prime minister David Cameron posted on Twitter: “Congratulations to the Duke and Duchess of Cambridge on the birth of their baby girl. I’m absolutely delighted for them.”
Labour leader Ed Miliband tweeted: “Congratulations to the Duke and Duchess on the birth of their daughter. Wishing them lots of joy and happiness “- and hopefully some sleep”.
Kate, who was believed to be nearly a week overdue, was looked after by consultant obstetrician Guy Thorpe-Beeston.
He was joined in the delivery room by Alan Farthing, the Queen’s surgeon-gynaecologist.
In a statement the palace said: “Their Royal Highnesses would like to thank all staff at the hospital for the care and treatment they have all received. They would also like to thank everyone for their warm wishes.”
Prince William had told the waiting media as he briefly left the hospital to pick up Prince George that the couple were “very happy”.
An official birth notice was placed on an easel at Buckingham Palace announcing the latest royal birth and will be there for 24 hours.
The world media began rushing to the media pen outside the hospital as the news of the labour was announced.
Unlike at the time of Prince George’s birth, the world’s press have been stopped from camping outside.
Fans of the royal family have also been gathering near the hospital with flags and banners in recent days with some sleeping in the rough in sleeping bags.
Royal protection officers, who carry concealed weapons at all times, were already stationed at the Lindo Wing in anticipation of Queen Elizabeth II’s fifth great grandchild.
Liberal Democrat leader Nick Clegg was invited in to a voter’s house to watch the announcement on TV. “On the doorstep in Sheffield. Thanks to the kind constituents who invited me in to see the great royal baby news being announced on their TV,” he tweeted.
Ukip leader Nigel Farage said he urged his party’s candidates to “take at least an hour out of campaigning” in order to toast the new arrival.
“I shall certainly be setting an example in that regard. After all, some things are worth interrupting politics for,” he said.
The duchess went on maternity leave on March 27 after carrying out her last official public engagement. Prince William is not due back at work until June 1.
Royal navy sailors on board HMS Lancaster sent a unique message of congratulations by lining up on the flight deck to spell out the word “sister”.
In Australia, which William and Kate visited last year, Prime Minister Tony Abbott sent a message saying his country “shares this young family’s joy”.
The baby was born less than three hours after 33-year-old Kate was admitted to hospital at around 6.00 am (local time).
“It’s a girl! It’s a girl!” the royal family supporters sang out after the birth was announced.
US President Barack Obama ‘delight’ at Britain’s newest princess
US President Barack Obama and his wife Michelle spoke of their joy after Prince William’s wife Kate gave birth to a baby girl on Saturday.
“Michelle and I are delighted to congratulate the Duke and Duchess of Cambridge, her Majesty the Queen and the royal family, and all the people of the United Kingdom on the birth of the Royal Princess,” the White House said in a statement.
“On behalf of the American people, we wish the Duke and Duchess and their son George much joy and happiness on the occasion of the arrival of the newest member of their family.”
News of the birth sparked celebrations in Britain.
The new Princess of Cambridge, who weighed in at 8 pounds 3 ounces (3.7 kilos), comes after big brother George in the line of succession.