Soranzo, Giacomo, 1686-1761, former owner.; Canonici, Matteo Luigi, 1727-1805, former owner.; Sneyd, Walter, 1809-1888, former owner.; Munby, A. N. L. (Alan Noel Latimer), 1913-1974, former owner.
Frederick II, Holy Roman Emperor, 1194-1250.; Innocent III, Pope, 1160 or 1161-1216.; Honorius III, Pope, -1227.; Gregory IX, Pope, approximately 1170-1241.; Innocent IV, Pope, approximately 1200-1254.; Urban IV, Pope, approximately 1200-1264.; Alexander IV, Pope, -1261.; Eugene IV, Pope, 1383-1447, addressee.