| 1381 | Rebuffi, Pierre (1487-1557) | Concordata | 1545 |
| 1382 | Rebuffi, Pierre (1487-1557) | Concordata inter... papam Leonem X... ac regem Franciscum... Primum... | 1538 |
| 1383 | Rebuffi, Pierre (1487-1557) | De Scolasticorum bibliopolarum | 1540 |
| 1384 | Restauld de Caligny, Alain (15..-1565) | Institutiones Hebraicæ | 1545 |
| 1385 | Ricard de Montcroix (1242?-1320) | Contra sectam Mahumeticam | 1511 |
| 1386 | Ricci, Agostino (14..-15..) | De motu octavae sphaerae | 1521 |
| 1387 | Riccio, Michele (1445-1515) | Compendiosi et veridici de regibus christianis fere Libelli | 1507 |
| 1388 | Richard de Mediavilla (12..-130.) | Authorati theologi Ricardi de Mediavilla,... Tria recognita reconcinataque Quodlibeta nunc primo... ... | 1519 |
| 1389 | Richard de Saint-Victor (1110?-1173) | Omnia opera in unum volumen congesta | 1518 |
| 1390 | Richard Fitz Ralph (1295?-1360) | Summa in questionibus Armenorum | 1512 |
| 1391 | Richard, Pierre (de Coutances, 14..-15..) | Confessionale Richardi | 1524 |
| 1392 | Richardson, Robert (15..-1573) | Exegesis in canonem divi Augustini | 1530 |
| 1393 | Richer, Christophe (1513?-1553) | De rebus Turcarum | 1540 |
| 1394 | Richer, Christophe (1513?-1553) | Des coustumes et manieres de vivre des Turcs | 1540 |
| 1395 | Ricius, Alphonsus (14..-15..) | Eruditiones christiane religionis | 1512 |
| 1396 | Rimbertinus, Bartholomaeus (1402?-1466) | Insignis atque preclarus De deliciis sensibilibus paradisi Liber | 1514 |
| 1397 | Rincio, Bernardino (14..-15..) | Epitalamion in nuptiis Francisci Galliarum Delphini et Mariae Britannorum regis filiae | 1518 |
| 1398 | Robortello, Francesco (1516-1567) | Variorum locorum annotationes | 1544 |
| 1399 | Rolevinck, Werner (1425-1502) | [Fasciculus temporum. latin. 1523-1524 ca] Fasciculus temporum.. usque ad annum christi M.ccccc.xxiiii | 1523-1524 |
| 1400 | Rolle de Hampole, Richard (1290?-1349) | Explanationes notabiles super lectiones illas beati Job | 1510 |
