- Rabirius Postumus, C.: 958, 963.
- Rabodangius, Franciscus: 1034.
- Radaeus (van den Rade), Aegidius (Gilles) (publisher in Antwerp): 1223, 1253, 1817, 2010, 2011, 2012, 2013, 2014.
- Rademaker, Jehan: 649.
- Raenerius, Joannes: 1842.
- Raevardus (Reyvaert), Jacobus: 2117, 2118, 2119 , 2206.
- Rafelengius: see Raphelengius.
- Raguyerus, Joannes: 1035.
- Rambervillerius, Claudius: 2261.
- Ramée, Petrus de la: See Ramus, Petrus.
- Rampart, Arnoldus: 1528.
- Rampazetus (publisher in Venice): 2361.
- Ramus, Joannes: 1507, 1508.
- Ramus (de la Ramée), Petrus: 47, 1641, 2120, 2121, 2122 , 2168.
- Ranaldi: see Bruttius.
- Ranaldus Radianensis, Caesar: 984.
- Ranst, Martinus a: 2310.
- Rantzovius, Bredo: 2125, 2126, 2127.
- Rantzovius, Franciscus: 2125, 2126, 2127.
- Rantzovius (Ranzovius; Rantzau), Henricus: 1564, 2123, 2124, 2125, 2126, 2127 .
- Rapardus, Franciscus: 1172.
- Raphelengius (Rafelengius; [van] Ravlenghien, van Ravelenghien, Raphelingien), Franciscus (senior): 574, 584, 593, 595, 605, 631, 644 (VI 1, VI 5, VII 1, VIII 13, Notes), 645, 666, 667, 668, 677, 698, 840, 857, 858, 926, 935, 970, 1011, 1106, 1145, 1165, 1189, 1226, 1275, 1325, 1335, 1339, 1346, 1377, 1405, 1496, 1512, 1518, 1522, 1533, 1534, 1537, 1544, 1551, 1552, 1553, 1558, 1564, 1565, 1566, 1575, 1586, 1591, 1635, 1636, 1641, 1724, 1862, 1863, 1865, 1914, 1915, 2078, 2092, 2114, 2123, 2131, 2167, 2175, 2193, 2199, 2257, 2266, 2280, 2281, 2289, 2419, 2455, 2456, 2480; Add. 18, 1145.
- Raphelengius, Franciscus (junior): 639, 857, 1335, 1500, 1534, 1535, 1535 bis, 1536, 1537, 1543, 1544, 1836, 2128 , 2175, 2197, 2198, 2199.
- Raphelengius, Justus: 1533.
- Rapinat, Geraldus: 1176.
- Raquet, Estienne: 1831.
- Rassenghien (baron de): 1930.
- Ratallerus (Rattallerus, Rattallerius), Georgius: 850, 912, 1109, 1145, 2224; Add. 1145.
- Ravelenghien (Ravlenghien): see Raphelengius.
- Raverdus: 844.
- Ravesteyn (Ravensteyn), Paul van (publisher in Amsterdam): 739, 1229.
- Ravillan (Ravillian), Pierre [Jean Pierre] de: 2, 2130 ; Add. 2, 2 bis, 1448, 1449, 1450, 1576, 2129 bis .
- Ravisius, Joannes Textor: See Textor, Joannes Ravisius.
- Razarius, Joannes Baptista: 2168.
- Razinghien (sr. de): 939A.
- Rebuffus, Petrus: 1035.
- Rec, Henrici a: see Henrici a Rec.
- ReChnicz, Daniel [a]: 1377, 2169.
- Rechnicz, Vitus: 2168.
- Rechtere, de (clerk of the States of Holland): 2480, 2483, 2487, 2488, 2489.
- Redigerus (Redingerus, Rehdiger), Thomas: 608, 996, 1545, 1546, 1710, 1711.
- Redinger: 2175.
- Redingerus, Jacobus: 2295.
- Regardus, Gallesius: 1232.
- Regius (Conincx), David Michaelis: 58, 604, 1682, 1685, 1699, 2132, 2133, 2134 .
- Rehdiger (Rhediger), Nicolaus (nicolas): 1006, 1836.
- Reichardus: 1236.
- Reiffinus: 1284.
- Reigheria, Jodoca: 1284.
- Reigherus, Jacobus: 1284.
- Reijnozo, Petro: 939A.
- Reineri: see Reyneri.
- Rennenberg (Rennenborch), Hermannus, count of: 927.
- Rennenberg, Johannes Franciscus, count of: 2375.
- Renti (marquis de): 2155.
- Renversé, Barbara de (wife of Flam. Garnier): 895.
- Requesens, Luis de (Ludovicus): 615, 2135, 2136, 2137 , 2314.
- Rescius, Rutgerus (publisher in Louvain): 996, 997, 1001, 1519, 2417.
- Reth, Jacobus du: 1304.
- Rethius, Joannes: 1335.
- Retzia (Retz) (mareschalla): see Claromontia, Catharina.
- Reulx (conte du): 939A.
- Reusnerus, Nicolaus: 1760.
- Reyneri (Reineri) Goudanus, Cornelius (censor): 581, 644 (IV, V, VI 1, VI 2, VI 3, VI 4, VI 5, VII 1, VII 2, VIII 11, VIII 12, VIII 13, VIII 15, VIII 16, VIII 17, Notes), 645, 646, 648, 679, 686, 687, 688, 689, 690, 691, 692, 693, 698, 1291, 1292, 1293, 1294, 1295, 1417, 1418, 1429, 1431, 1432, 1507, 1587, 2313, 2314, 2315, 2317.
- Reyvaert, Jacobus: See Raevardus, Jacobus.
- Rhambertus, Benedictus: 964.
- Rhamnusius, Paullus: 854, 855, 856.
- Rhamusio, Jan Baptiste (Giovanni Baptista): 53, 1517.
- Rhedinger, Nicolas: see Rehdiger, Nicolas.
- Rhetius, Georgius: 1099.
- Rhianus: 2080.
- Ribadavia (conte de): 939A.
- Ribadeneira (Ribadeneyra), Petrus: 2140, 2141 .
- Ribera, Joannes a (archbishop): 1595, 1596, 1597.
- Riccoboni, Antonio: Add. 976.
- Richaeus de Postella, Dominicus: 2142 .
- Richardot (councillor): 1914, 1930.
- Richardot (Richardotus), Franciscus (bishop of Arras): 47, 597, 1284, 2143, 2144, 2145, 2146 , 2270, 2274, 2312.
- Richardotus, J. Grenssetus: 1960.
- Richardus, archiepiscopus Ardmachanus (Ireland): 928.
- Rieu, Jochem du (bookseller): 2104.
- Rigaud, Benoit (publisher in Lyons): 1966.
- Rihelius, Wendelinus (Vendelinus) (publisher in Strasbourg): 1182, 1505, 2057.
- Rijcken, Henricus (engraver): 1303.
- Rijm, Philibertus: 2210.
- Rimicius: 11, 14.
- Rinfort, Georges de: 2147 .
- Rio, Martinus Antonius Del: See Delrio, Martinus Antonius.
- Ripensis, Joannes Franciscus: 2150.
- Riserius, Dionysius: 981, 982.
- Risius de Cuppis, Bernardinus: 1235.
- Riswichius, Henricus: 1756, 1757.
- Rithovius (Rythovius), Martinus (bishop of Ypres): 1060, 1061, 1320, 1866, 2115; Add. 1060bis.
- Rivière, Jeanne (wife of Plantin): 1496.
- Rivière, Guillaume (compositor in the Plantin Press): 1910, 1911, 1912, 1913.
- Rivius, Joannes: 922 bis, 2295.
- Robinot (publisher in Paris): 730.
- Roblesius, Gaspar: 736.
- Robortellus, Franciscus: 850, 2168.
- Robusterus, Christophorus: 1235.
- Rocasius, Carolus: see Rotcaesus, Carolus.
- Rochemore, Jacques de: 1274.
- Rococcius (Roccox), Nicolaus (Nicolaes): 1584, 1585, 1828.
- Roda, Jeronimo de: 2413.
- Rodas, de: 1154, 2129.
- Rodriguez, L. (publisher in Coimbra): 53.
- Roelants, Martinus: 2184.
- Roelas, Diego de las: 939A.
- Roemer Visscher: 2347.
- Roffet, Estienne (publisher in Paris): 735.
- Rogatianus: 644 (II).
- Rogerius (Rogers, Rogersius), Daniel: 1253, 1817, 1818, 1820, 2148, 2194.
- Rogerius, Reginaldus: 58.
- Rojas Sandoval, Christoval de: 1238.
- Rolandius, Gabriel: 2261, 2262, 2419.
- Rollea, Alba: 2168, 2170.
- Rolleus, Arnoldus: 2168, 2170.
- Rollinius, Claudius: 2210.
- Romanus, Joannes Baptista (with his real name Elian): 884, 2149 .
- Romanus, Victorius (publisher in Rome): 616.
- Rondeletius (Rondelletius, Rondelet), Guilielmus (Gulielmus, Guillaume): 57, 1006, 1024, 1578, 1579, 2150 , 2175.
- Ronsard (Ronsardus), Pierre de: 47, 2151, 2152, 2153 .
- Roose, A. (clerk of the city of Antwerp): 568.
- Rootcaesus: see Rotcaesus.
- Ropera, Margareta: 1250.
- Rore, Cyprianus de: 1306.
- Roscius, Quinctius: 963.
- Roscius Amerinus, Sextus: 963.
- Rosenburg, Cornille de: 1050.
- Rosenburgus, Arnoldus: 1476, 1477, 1478, 1479, 1480, 1481.
- Rosendalius (van Rosendael), Jacobus: 2154 , 2478.
- Rosilla: 1109, 1110.
- Rotaeus, Joannes (publisher in Cologne): 2206.
- Rotarius, Martinus (publisher in Louvain): 996, 1456.
- Rotcaesus (Rotcarsus, Rotcasius, Rootcaesus), Carolus: 870, 929, 1109, 1535, 1535 bis, 1536, 1537, 1542, 1550.
- Roubais (marquis de): 1930.
- Rouillé, Guillaume: see Rovillius, Guilielmus.
- Rouilon (Rouillon), Charles de: 48, 2155 .
- Rous, Nicolas le (publisher in Rouen): 2151.
- Roussart, Ludovicus: see Russardus, Ludovicus.
- Roux, Pierre (publisher in Avignon): 1963.
- Rovillius (Rouillius, Roville, Rouillé), Guilielmus (Gulielmus, Guillaume) (publisher in Lyons): 615, 1030, 1034, 1274, 1643, 1949, 2453.
- Roy, A. Le: 1255.
- Roy, Maurice (publisher in Lyons): 2467.
- Royer, Jean (publisher in Paris): 1618.
- Royere, Jodocus de la: 1284.
- Rubellus, Joannes: 47.
- Rudolphus (Rudolph) II (German emperor): 19, 1007, 1008, 1093, 1498, 1716, 1817, 1818.
- Ruelas, Pedro de las: 939A.
- Ruelle, Jean (Jehan) (publisher in Paris): 2201, 2467, 2467 bis.
- Ruffaldus: 2265.
- Ruffus: 2175.
- Rufinus, Alexander (bishop): 993, 1232, 1235.
- Ruieu, Claude de: 54.
- Ruissenberg, Henricus a: 1606.
- Rullus, P. Servilius: 963.
- Rumpff, Wolfgangus: 1094.
- Ruscelli, Jeronimo (Girolamo): 33.
- Russardus (Roussart), Ludovicus: 1034.
- Rustenius, Lambertus: 1253.
- Rutilius, Bernhardinus: 1035.
- Ruvart, N.: 1067.
- Rymius, Carolus: 2185.
- Rymius, Philibertus: 2185.
- Rythovius, Martinus: see Rithovius, Martinus.