"Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 4.24 p.m. The baby weighs 8lbs 6oz. The Duke of Cambridge was present for the birth. 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." -- Official statement from Kensington Palace, the Duke and Duchess of Cambridge's residence.
Prince William said he and wife Catherine "could not be happier" over the birth of their first child, according to a Kensington Palace spokesman.
The Duke and Duchess of Cambridge issued a statement thanking doctors and hospital staff for "tremendous care. "We know it has been a very busy period for the hospital and we would like to thank everyone -- staff, patients and visitors -- for their understanding during this time," they said.
The public got its first glimpse of the new prince on July 23, 2013. "It's very special," Prince William said in response to a few questions from a reporter. "He's got her looks, thankfully."
"Both my wife and I are overjoyed at the arrival of my first grandchild. It is an incredibly special moment for William and Catherine and we are so thrilled for them on the birth of their baby boy. Grandparenthood is a unique moment in anyone’s life, as countless kind people have told me in recent months, so I am enormously proud and happy to be a grandfather for the first time and we are eagerly looking forward to seeing the baby in the near future." -- Prince Charles
The royal baby's birth is "wonderful news," British Prime Minister David Cameron said. "I'm sure that right across the country and indeed right across the commonwealth, people will be celebrating and wishing the royal couple well," Cameron said. "It is an important moment in the life of our nation, but I suppose above all it's a wonderful moment for a warm and loving couple who got a brand new baby boy."
"Michelle and I are so pleased to congratulate The Duke and Duchess of Cambridge on the joyous occasion of the birth of their first child. We wish them all the happiness and blessings parenthood brings. The child enters the world at a time of promise and opportunity for our two nations. Given the special relationship between us, the American people are pleased to join with the people of the United Kingdom as they celebrate the birth of the young prince." -- U.S. President Barack Obama
"Canadians are delighted to learn of the birth of The Duke and Duchess of Cambridge’s son, and we offer our heartfelt congratulations to the Royal Couple and the entire Royal Family. ... This new beginning reminds us of the remarkable and enduring relationship our country has enjoyed with generations of the Royal Family. ... Laureen and I send our best wishes of health and happiness to the new parents as they embark on this exciting chapter in their lives." -- Canadian Prime Minister Stephen Harper
"On behalf of all Australians, Therese and I extend our warmest regards to the new parents, Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge. We share in the joy of the Royal Family, particularly Prince Charles on the birth of his grandson and Queen Elizabeth II on the birth of her great-grandchild." -- Australian Prime Minister Kevin Rudd