Prince William and his wife Kate Middleton, who has been given the title of The Duchess of Cambridge, kiss on the balcony of Buckingham Palace, London, following their wedding at Westminster Abbey. PRESS ASSOCIATION Photo. Picture date: Friday April 29, 2011. Photo credit should read: Chris Ison/PA Wire

Photo Gallery: A look back at Prince William, Prince Harry and other royal babies

Tuesday, December 4, 2012
6.38 PM

Kate Middleton and Prince William are expecting a baby, it was announced yesterday.

The Queen and Duke of Edinburgh, the Prince of Wales and members of both families are delighted with the news, said a spokesman.

But St James’s Palace said in a statement that Kate had been admitted to a private hospital for treatment for a severe form of morning sickness known as hyperemesis gravidarum.

We take a look at the royal babies through history.