1/11People gather outside a floodlit Buckingham Palace in London to mark the birth of a baby boy to Prince William and Kate, Duchess of Cambridge, July 22, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
2/11The London Eye on the banks of the Thames is lit up in red, blue and white to mark the birth of a baby boy to Prince William and Kate, Duchess of Cambridge, London, July 22, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
3/11An easel in the forecourt of Buckingham Palace carries an official document to announce the birth of a baby boy, at 4:24pm to the Duke and Duchess of Cambridge at St. Mary's Hospital, July 22, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
4/11Members of media give live reports across from St. Mary's Hospital exclusive Lindo Wing in London, July 22, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
5/11British police officers guard the entrance of St. Mary's Hospital exclusive Lindo Wing in London, July 22, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
6/11Royal fan Margaret Tyler waits outside the Lindo Wing of St Mary's Hospital, where Britain's Catherine, Duchess of Cambridge is expected to give birth, in London July 20, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
7/11Women pretending to be pregnant and wearing masks of Britain's Catherine, Duchess of Cambridge pose outside the Lindo Wing of St Mary's Hospital, where the Duchess of Cambridge is expected to give birth, in London July 18, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
8/11A bookmaker agency employee poses for the photographers with a board of odds regarding the royal baby's name near St. Mary's Hospital, London, July 17, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
9/11Royal fans sit outside St. Mary's Hospital in anticipation of the birth of Catherine, Duchess of Cambridge's, first baby in central London, July 16, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
10/11Representatives from a betting company wear baby masks outside St. Mary's Hospital in London, July 12, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
11/11Cards depicting the 'royal baby,' either as a boy or a girl, are shown outside St. Mary's Hospital, London, July 11, 2013.
British officials say Prince William's wife, Kate, has given birth to a baby boy, the couple's first child and the heir to the British throne.
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Royal supporter Terry Hutt poses for pictures on a bench where he has been camped out for 12 days outside the Lindo Wing of St Mary's Hospital in London, where Prince William and his wife Catherine's baby is expected to be born.