updated 05/09/2011 AT 10:00 AM ET
•originally published 05/09/2011 AT 10:20 AM ET
Hollywood royalty, meet the more traditional kind.
The Oscar winner, 35, was decked out in a conservative black blouse and skirt. Harry, 26, wore his traditional polo gear.
The princes’ foundation was set up in 2009 as the focus of their charity work.