Mussolini's Grandson Tries Tennis at School in Sussex: Mussolini's 16 year old grandson, Count Mario Ciano, is staying in Sussex - and breaks off his game of tennis here to pose for the Sunday Express camera. "England is not too bad" he says after his first week's stay". Mario - described by his mother Edda Ciano, who was in London last week, as "a very difficult boy" - is learning English. He is living at Powdermill House, Battle, the home of Mrs. Evelyn Harbord. His campions are half a dozen other boys and girls who have come over from the continent for a holiday, and to learn English under Mrs. Harbord's guidance. July 11, 1954. (Photo by Sunday Express Picture).