Video: Service of Thanksgiving held for the Queen's Diamond Jubilee Despite forecasts of chilly temperatures and light rain, Buckingham Palace said the Queen still intends to use an open-topped landau for the afternoon carriage procession so the crowds lining Whitehall and The Mall could get the best possible view. It is expected she will be joined in following carriages by the Prince of Wales and Duchess of Cornwall and the Duke and Duchess of Cambridge and Prince Harry. It is not known yet who, if anyone, will take the place of the Duke of Edinburgh in the Queen's carriage.