Sexcentenary of Founding of The Order of The Garter - The Procession leaving St. Georges Chapel headed by The King and Queen, followed by Queen Mary and the Duke of Gloucester, Princess Elizabeth, the Duke of Edinburgh, the Duchess of Gloucester, Princess Margaret, the Duchess of Kent and the Earl of Athlone through a Guard of Honour formed by the newly ***** Knights on either side of ***** . To-day, St. George's Day, the 600th anniversary of the Founding of the Most Noble Order of the Garter was celebrated and the new Lady and Knights of the Order were installed. April 23, 1948.