Prince William, Kate Middleton first child

Duchess of Cambridge admitted to hospital for morning sickness

Published On: Dec 03 2012 11:13:13 AM EST   Updated On: Dec 03 2012 11:19:43 AM EST

Palace officials say Prince William and his wife are expecting their first child.

St. James Palace said Monday that the Duchess of Cambridge has a severe form of morning sickness and is currently in a London hospital.

As the first born to William -- who is second in line to the throne after his father, Prince Charles -- the couple's first child stands an excellent chance of one day becoming monarch.

Whether boy or girl, the child will be behind Prince William in the line of succession to the throne, Cabinet Office officials said.