Britain's Catherine, Duchess of Cambridge and Prince William ride in a State Landau coach during a carriage procession from Westminster Hall to Buckingham Palace on the final ceremonial day of celebrations for the Queen's Diamond Jubilee in London on June 5, 2012. Queen Elizabeth II led a grand carriage procession through London to mark her diamond jubilee Tuesday but faced the crowning moment of the festivities without her ill husband Prince Philip. AFP PHOTO / MIGUEL MEDINA