Reaction to Monday's birth of a baby boy to Prince William and his wife, Kate. The prince is now third in line to the British throne:
"Her Royal Highness and her child are both doing well and will remain in hospital overnight. Members of both families have been informed and are delighted with the news." - Birth announcement from Kensington Palace.
"It is an incredibly special moment for William and Catherine and we are so thrilled for them on the birth of their baby boy ... I am enormously proud and happy to be a grandfather for the first time." - Prince Charles, in a statement.
"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. - President Barack Obama and the first lady.
"I'm delighted for the Duke and Duchess now (that) their son has been born. The whole country will celebrate. They'll make wonderful parents." - Prime Minister David Cameron.
The arrival of "a future sovereign of Canada" is a "highly anticipated moment for Canadians given the special and warm relationship that we share with our Royal Family." - Canadian Prime Minister Stephen Harper.
"Today Diana, Princess of Wales, would have been a proud grandmother," said Tessy Ojo, CEO of the Diana Award, an initiative which recognizes teenagers who make outstanding contributions to their communities. "Her legacy continues through the inspirational work of these young people who carry this honor, set up in her memory, with pride."
"I am sure that people across Scotland will be absolutely thrilled to hear the news of the birth of a baby boy to the royal couple and will want to join me in wishing the proud parents many congratulations." - Scottish First Minister Alex Salmond.
"It's a boy!!! Special times ahead for Kate and William." - former Spice Girl Emma Bunton.
On Wall Street, stocks barely moved for much of the day. Then the birth was announced shortly before the close, and stocks managed to eke out a gain.
Coincidence? Who cares?
"It was such a dead day, it was the highlight," said Tom Digaloma, a senior vice president at investment firm ED&F Man Capital. "It's summer."