The royal baby due date was leaked to a British publication by a friend of William and Kate who heard the July 13 date at a barbecue with the couple.
While July has long been the expected month of the birth of Prince William and Kate Middelton's baby, for those who have got to know the exact expected day, here's the first report of that: July 13.
The British publication, The Mail on Sunday, quoted an unnamed friend of the royal couple: "Some of Kate and William’s closest pals were at a barbecue hosted by a family friend of the Royals recently. They were all discussing the fact that Kate’s baby is due to be born on July 13. Everyone was very excited."
If the unnamed source is correct and the baby cooperates, the birth would fall smack in the middle of another royal landmark, the four-day Coronation Festival marking the 60th anniversary of the Queen's coronation.
The couple was married April 29, 2011.