"Pope Sylvester III" . . . . . . . . "Sylvester III" . . "Pope Sylvester III" . "Pope Sylvester III" . "Giovanni dei Crescenzi \u2013 Ottaviani" . "Bishop of Rome" . . . . . . . . . . . . . "John of Crescenzi" . . . . . . . . . . . . . . . "III" . . .