Prince William and Kate, the Duke and Duchess of Cambridge, leave the stage after his remarks at the Service Nation: Mission Serve "Hiring Our Heroes Los Angeles" job fair event at Sony Pictures Studios in Culver City, Calif., Sunday, July 10, 2011. (AP Photo/Chris Pizzello)

In this Nov. 16, 2010 file photo, Michael and Carole Middleton, the parents of Kate Middleton, prepare to make a statement on the engagement of their daughter to Britain's Prince William, outside their home near the village of Bucklebury, England. The Middleton clan is blessed with strong ties and commercial savvy. Kate's parents, Michael and Carole, went from airline employees to owners of a successful small business who gained their children access to Britain's loftiest social circles. Michael Middleton was a flight dispatcher and Carole Goldsmith a flight attendant before they married and, in the 1980s, set up Party Pieces, a business selling balloons, candles, streamers and other mail-order party supplies. (AP Photo/Stefan Rousseau, pool)