British Prime Minister David Cameron has sent his best wishes to the Duke and Duchess of Cambridge.
Prince William is by his wife's bedside at the Lindo Wing of St. Mary's Hospital in Paddington, London, where she was rushed after going into labour this morning (22.07.13) and the politician is just as excited as the rest of the country about their new arrival.
He told the BBC: "Best wishes to them, a very exciting occasion and the whole country is excited with them. So, everyone's hoping for the best."
David - himself a father to three - said he was "pretty involved" with the birth of his children, but doesn't know how hands-on William is likely to be, adding: "It's up to every family to work out how they want to do these things."
Speaking about his duties to the new arrival he added: "I can't claim any role in this one, I'm afraid, except one small thing - well, it's a big thing actually - which is to get all of the heads of the realms over which our Queen is Queen, to agree that whatever the sex of the baby that Will and Kate have, if it's a girl, it will be our Queen."
Outside the hospital a large crowd has gathered, hoping to be among the first to hear the news the Duchess - formerly known as Kate Middleton - has given birth. This will be announced by a royal aide, possibly either the Duke or Duchess' press secretary, who will come out of the Lindo wing's front door with a piece of paper, which contains all the details of the new heir, such as eye colour, hair colour, weight and time of birth.
However, these details will not be made public until the notice is placed on an easel - the same used to announce William's birth 31 years ago - at Buckingham Palace, where even greater crowds are expected.
The royal couple are then expected to leave the hospital with their baby a few hours later when Kate has recovered from the birth.
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