The Duke of Kent In Sovereign's Parade Rehearsal - Now recovered from his recent car accident the Duke of Kent marches on parade with drawn sword at the Royal Military Academy Sandhurst today (Monday). He was taking part in a rehearsal for Thursday's Sovereign's Parade, at which he will pass out with a commission as a Second Lieutenant at the and of his two-year training course. A bout 600 Sandhurst cades will pass out at the parade, which is to be taken by the Duke of Edinburgh. July 25, 1955. (Photo by Reuterphoto).