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Royal historian on plans for the Duke and Duchess of Cambridge's baby

19 June 2013 Last updated at 17:19 BST

More details have been revealed about plans for the birth of the Duke and Duchess of Cambridge's baby.

Royal officials say that the baby will be delivered in the private Lindo Wing of St Mary's Hospital in Paddington, west London, which is where Prince William was born.

When the baby is born, an official announcement will be signed by medical staff and driven to Buckingham Palace - almost certainly under police escort.

The notice will then be placed at the palace central gates.

This will form the official announcement, as was the case when Prince William's birth was announced 31 years ago.

Royal Historian Hugo Vickers says that he can see the influence of Prince William in the way that the birth is going to be announced.