[00:43.99]The letter has been placed on an easel there with the flourish of a royal proclamation of old.
[00:49.29]William and Kate's first child, the new-born prince, will be the third in line to the throne.
[00:54.52]The birth will mark a change in focus for the royal couple as they grapple with family life and duties in the media spotlight.
[01:02.27]Mother and son are doing well. Both families have been informed. The duchess will stay in hospital overnight.
[01:08.34]William's father, Prince Charles, said he was enormously proud and happy to become a grandfather for the first time.
[01:15.04]Britain's Prime Minister David Cameron hailed the royal birth as an important moment in the life of the nation,
[01:20.81]but above all, a wonderful moment for a warm and loving couple.
[01:24.39]"It's wonderful news from St Mary's, Paddington,
[01:27.42]and I'm sure that right across the country and indeed right across the Commonwealth people will be celebrating and wishing the royal couple well.
[01:35.22]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.”
[01:46.10]The Canadian Prime Minister Stephen Harper said Canadians were delighted to learn of the arrival of the newest member of the royal family who would be a future sovereign of Canada.