Guards officers arrive back at their barracks after attending the Opening of Parliament . Photo shows ; Left to right ; The Marquess of Blandford - son and heir to the Duke of Marlborough ; the Marquess of Duro - son and heir to the Duke of Wellington and the Earl of Westmoreland seen on their arrival back at the Knightsbridge Barracks after taking part in the Opening of Parliament ceremonies this morning . 14 September 1948