Marconi's grave is at Villa Falcone, and there is a memorial to him at Santa Croce Church in Florence. See http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=9982 and http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=8456 73, John, K9MM