(Britain's Prince William and his fiancee Kate Middleton watch a demonstration by students, during their visit to the Darwen Aldridge Community Academy (DACA), in Darwen, northern England April 11, 2011. A large crowd of well-wishers braved a downpour in northern England on Monday to cheer Prince William and Kate Middleton as they took part in their final official engagement before their wedding. REUTERS/Adrian Dennis)

(Britain's Prince William and his fiancee Kate Middleton in Darwen, northern England April 11, 2011/Adrian Dennis)