Royal Dukes In Queen Mary's Lying-In-State Procession -- The four Royal Dukes in the Procession through Whitehall left to right - The Duke of Edinburgh the Duke of Windsor; the Duke of Kent.Behind are Prince George of Denmark (uniform) and the Earl of Harewood. Through streets line with sorrowing crowds, Queen Mary made her last Processional journey in London today (Sunday) when her coffin was taken from the Queen's chapel of Marlborough House to Westminster Hall for the lying-in-Stats. March 29, 1953. (Photo by Reuterphoto). The Coffin was borne on a horse-drawn gun carriage of the King's Troop, royal Horse Artillery.In the Procession were four Royal Dukes (of windsor, Gloucester, Kent,and Edinburgh), members of the armed forces and representatives of Queen Mary's household and staff.