| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Fernando Andrade Sotomayor † | Villagarcía | Archbishop of Santiago de Compostela, Spain |
| Born | Alderano Bellati (Bellatto) † | Massa di Carrara | Bishop Emeritus of Bisignano, Italy |
| 66.0 | Died | Pietro Antonio Di Capua † | Archbishop of Otranto, Italy |
| Born | Gil Carrillo de Albornoz † | Talavera de la Reina, Spain | Cardinal, Archbishop Emeritus of Taranto, Italy |
| Born | Altobello Carissimi † | | Bishop of Minervino Murge, Italy |
| Died | Antonio de Angelis † | Bishop of Massa Marittima, Italy |
| 43.0 | Appointed | Miguel de Castro † | Bishop of Viseu, Portugal | Archbishop of Lisboa {Lisbon}, Portugal |
| Died | Giovanni Ludovico da Campania † | Bishop of Mottola (Motula), Italy |
| Born | Pierre d’Hardivillier † | Picardie | Archbishop of Bourges, France |
| Died | Agostino Folignatti (Molignatus) † | Bishop of Bertinoro, Italy |
| Died | Gregorio Forbicini † | Bishop of Strongoli, Italy |
| Appointed | Claude de Granier † | Bishop of Genève {Geneva}, Switzerland |
| Resigned | Bernardus Herinck † | Bishop of Deventer, Netherlands | Bishop Emeritus |
| Born | Philippe Hurault de Cheverny † | | Bishop of Chartres, France |
| Born | Bernardo Lacabra † | Zaragoza | Archbishop of Cagliari, Italy |
| Born | Benedetto Mandina, C.R. † | Melphien | Bishop of Tropea, Italy |
| Born | Vincenzo Martena † | | Bishop of Senj, Croatia |
| Born | Raymond de Montaigne † | | Bishop of Bayonne, France |
| Ordained Bishop | Juan Montalvo, O.P. † | Bishop of Cartagena, Colombia |
| Born | Johann Heinrich von Ostein † | | Bishop of Basel, Switzerland |
| Born | Placido Padiglia, O.S.B. † | Napoli | Bishop of Alessano, Italy |
| Appointed | Stanislav Pavlovský † | Bishop of Olomouc (Olmütz), Czech Republic |
| Born | Cyprian Pavoni, O.S.B. † | | Bishop of Rimini, Italy |
| Died | Robert de Pellevé † | Bishop of Pamiers, France |
| Appointed | Thomas Pobel † | Bishop of Saint-Paul-Trois-Châteaux, France | Bishop Emeritus |
| Resigned | Vincenzo Portico † | Archbishop of Dubrovnik (Ragusa), Croatia | Archbishop Emeritus |
| Resigned | Matteo Priuli † | Bishop of Vicenza, Italy | Bishop Emeritus |
| Appointed | João Ribeiro Gaio † | Bishop of Malacca, Singapore |
| 50.0 | Resigned | François de Salignac de La Mothe-Fénelon † | Bishop of Sarlat, France | Bishop Emeritus |
| Born | Giovanni Battista Scanaroli (Scannaroli) † | Mutinen | Titular Bishop of Sidon |
| Resigned | Giovan Battista Serbelloni † | Bishop of Cassano all’Jonio, Italy | Bishop Emeritus |
| Born | Honuphrius Sersagli † | Surrentin | Bishop of Carinola (Calina), Italy |
| Appointed | Francesco Maria Sforza † | Bishop of Conversano, Italy |
| Appointed | Ludovico Taverna † | Bishop of Lodi, Italy |
| 44.0 | Appointed | Mikuláš Telegdy † | Bishop of Pécs, Hungary |
| Born | Antonio Trejo de Sande Paniagua, O.F.M. † | Plasencia | Bishop of Cartagena (en España) |
| Died | Romolo de Valentibus † | Bishop of Conversano, Italy |
| Born | Thomas Walsh † | Waterford | Archbishop of Cashel, Ireland |
| 9 Jan | | Appointed | Antonio de Hervias, O.P. † | Bishop of Verapaz, Guatemala | Bishop of Cartagena, Colombia |
| Appointed | Pedro García Galarza † | Bishop of Coria, Spain |
| Appointed | Alfonso Graniero Avalos † | Bishop of La Plata o Charcas, Bolivia |
| Appointed | Ambroz Antun Kapić (Capizzi), O.F.M. † | Archbishop of Bar (Antivari), Montenegro |
| 49.0 | Appointed | Jerónimo Manrique de Lara † | Bishop of Salamanca, Spain |
| 23 Jan | | Appointed | Gilberto Isfar y Corillas † | Bishop of Patti, Italy |
| 25 Jan | 44.4 | Ordained Bishop | Juan de Sanclemente Torquemada † | Bishop of Orense, Spain | Archbishop of Santiago de Compostela, Spain |
| 27 Jan | | Born | Antonio Tornielli † | Novara | Bishop of Novara, Italy |
| 30 Jan | 47.1 | Resigned | Juan Manuel de la Cerda † | Bishop of Sigüenza, Spain | Bishop Emeritus |
| Appointed | Nicolò Mascardi † | Bishop of Brugnato, Italy | Bishop of Accia and Mariana, France |
| 6 Feb | | Appointed | Tiberio Carafa † | Bishop of Cassano all’Jonio, Italy |
| Appointed | Alfonso Guerra, O.M. † | Bishop of Paraguay | Bishop of Michoacán, México |
| Appointed | Sebastián Ocando, O.F.M. † | Bishop of Santa Marta, Colombia |
| 67.1 | Appointed | Domingo Salazar, O.P. † | Bishop of Manila, Philippines |
| 8 Feb | 40.5 | Ordained Bishop | Claude d’Angennes de Rambouillet † | Bishop of Noyon, France | Bishop of Le Mans, France |
| 13 Feb | | Appointed | Matteo Colli † | Bishop of Marsi, Italy |
| 22 Feb | | Born | Nicolas Dufiff † | | Bishop-Elect of Arras, France |
| 3 Mar | | Died | Adriano Fuscone † | Bishop of Aquino, Italy |
| 9 Mar | | Appointed | Louis de Salignac de La Mothe-Fénelon † | Bishop of Sarlat, France |
| 19 Mar | | Died | Bertrando de Romanis † | Bishop of Fréjus, France |
| 29 Mar | 49.2 | Ordained Bishop | Jerónimo Manrique de Lara † | Bishop of Salamanca, Spain |
| 30 Mar | | Appointed | Bernardo Gascó † | Bishop of Mazara del Vallo, Italy |
| Appointed | Giovanni Luigi Guarini † | Bishop of Aquino, Italy |
| Appointed | Antonio Lombardo † | Bishop of Agrigento (Girgenti), Italy | Archbishop of Messina, Italy |
| Apr | | Died | Orazio Montegranelli † | Bishop of Fossombrone, Italy |
| 27 Apr | 40.8 | Appointed | Alberto Bolognetti † | Cardinal, Bishop of Massa Marittima, Italy |
| Appointed | Gil Ruiz de Lihori, C.R.S.A. † | Bishop of Segorbe, Spain |
| 29 Apr | 54.5 | Died | Diego de Landa, O.F.M. † | Bishop of Yucatán (Mérida), México |
| 15 May | 40.4 | Appointed | Ottavio Accoramboni † | Bishop of Fossombrone, Italy | Archbishop Emeritus of Urbino, Italy |
| Appointed | Johann Baptist Pichlmair † | Auxiliary Bishop of Regensburg, Germany |
| Appointed | Johann Baptist Pichlmair † | Titular Bishop of Halmiros | Auxiliary Bishop of Regensburg, Germany |
| 16 May | 41.4 | Appointed | St. Toribio Alfonso de Mogrovejo † | Archbishop of Lima, Peru |
| 22 May | | Appointed | François de Bouliers † | Bishop of Fréjus, France |
| Appointed | Domenico di Grammatica † | Archbishop of Naxos, Greece |
| Appointed | Juan Terés † | Bishop of Elne, France | Archbishop of Tarragona, Spain |
| 1 Jun | | Appointed | Girolamo Matteucci † | Archbishop of Dubrovnik (Ragusa), Croatia | Bishop of Viterbo e Tuscania, Italy |
| 22 Jun | 43.5 | Died | David Kölderer von Burgstall † | Bishop of Regensburg, Germany |
| 26 Jun | | Appointed | Juan Castellano Orozco † | Bishop of Siracusa, Italy |
| Appointed | Lorenzo Figueroa Córdoba, O.P. † | Bishop of Sigüenza, Spain |
| Appointed | Miguel Rubio, O. Cist. † | Bishop of Ampurias e Civita, Italy |
| 3 Jul | | Appointed | Mario Bolognini † | Archbishop of Lanciano, Italy | Archbishop of Salerno, Italy |
| Appointed | Ascanio Piccolomini † | Coadjutor Archbishop of Siena, Italy | Archbishop |
| Appointed | Ascanio Piccolomini † | Titular Archbishop of Rhodus | Archbishop of Siena, Italy |
| Appointed | Mariano de Racciaccaris, O.F.M. † | Bishop of L’Aquila, Italy |
| 5 Jul | | Ordained Bishop | Mario Bolognini † | Archbishop of Lanciano, Italy | Archbishop of Salerno, Italy |
| 6 Jul | | Born | Bernardino de Almansa Carrión † | Lima, Peru | Archbishop of Santafé en Nueva Granada, Colombia |
| 14 Jul | 2.8 | Selected | Philipp Wilhelm von Bayern † | Bishop of Regensburg, Germany | Cardinal, Bishop-Elect |
| 23 Jul | | Died | Bernardo de Albuquerque, O.P. † | Bishop of Antequera, Oaxaca, México |
| 24 Jul | 62.6 | Died | Benedetto Lomellini † | Cardinal, Bishop of Anagni, Italy |
| 26 Jul | | Died | Alessandro Ruffino † | Bishop Emeritus of Melfi e Rapolla, Italy | Bishop |
| 27 Jul | | Died | Pietro Camaiani † | Bishop of Ascoli Piceno, Italy |
| 3 Aug | | Appointed | Niccolò Aragonio (Aragona) † | Bishop of Ascoli Piceno, Italy |
| Appointed | Troilo Boncompagni † | Bishop of Ripatransone, Italy | Bishop of Foligno, Italy |
| Appointed | Rinaldo Corso † | Bishop of Strongoli, Italy |
| 60.0 | Appointed | Vincenzo Giustiniani, O.P. † | Cardinal, Cardinal-Priest of Santa Sabina |
| Appointed | Giacomo Micheli † | Bishop of Mottola (Motula), Italy |
| Appointed | Jaime Miguel Miguélez † | Bishop of Foreign Diocese |
| Appointed | Michele Priuli † | Bishop of Vicenza, Italy |
| Appointed | Gaspare Viviani † | Bishop of Anagni, Italy |
| 5 Aug | 75.3 | Died | Stanislaw Hosius (Hozjusz) † | Cardinal, Bishop of Warmia (Ermland), Poland |
| Succeeded | Marcin Kromer † | Bishop of Warmia (Ermland), Poland |
| 13 Aug | | Died | Bl. Patrick O’Healy, O.F.M. † | Bishop of Mayo, Ireland |
| 17 Aug | | Appointed | Sebastiano Barnaba † | Bishop of Potenza, Italy |
| 52.4 | Appointed | Zaccaria Delfino † | Cardinal-Priest of Sant’Anastasia | Cardinal, Bishop Emeritus of Hvar (Lesina), Croatia |
| 38.8 | Appointed | Alfonso Gesualdo di Conza (Gonza) † | Cardinal-Priest of San Pietro in Vincoli | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 46.5 | Appointed | Giovanni Francesco Gàmbara † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Cardinal-Bishop of Palestrina |
| 46.0 | Appointed | Mark Sittich von Hohenems (Altemps) † | Cardinal-Priest of San Clemente | Cardinal, Bishop Emeritus of Konstanz {Constance}, Germany |
| 23 Aug | | Died | Miguel Jerónimo Morell † | Bishop of Urgell, Spain |
| 71.6 | Died | Francisco Pacheco de Villena (Toledo) † | Cardinal, Archbishop of Burgos, Spain |
| 26 Aug | 50.2 | Appointed | Giovanni Delfino † | Bishop of Brescia, Italy |
| Appointed | Carlo Pisani † | Bishop of Torcello (Turris), Italy |
| 30 Aug | 27.5 | Ordained Priest | Melchior Klesl † | Priest of Wien, Austria | Cardinal, Bishop |
| Ordained Bishop | Johann Baptist Pichlmair † | Titular Bishop of Halmiros | Auxiliary Bishop of Regensburg, Germany |
| 6 Sep | | Ordained Bishop | Miguel Rubio, O. Cist. † | Bishop of Ampurias e Civita, Italy |
| 11 Sep | | Died | Pomponio Cotta † | Bishop of Novara, Italy |
| Ordained Bishop | Ascanio Piccolomini † | Titular Archbishop of Rhodus | Archbishop of Siena, Italy |
| 13 Sep | | Died | Diego Deza Tello † | Bishop of Jaén, Spain |
| 20 Sep | | Died | Gonzalo Herrera Olivares † | Auxiliary Bishop of Burgos, Spain |
| 17.3 | Confirmed | Johann Wilhelm von Jülich-Kleve-Berg † | Bishop of Münster, Germany | Former Bishop-Elect |
| 25 Sep | 70.5 | Died | Gregorio Antonio Gallo de Andrade † | Bishop of Segovia, Spain |
| 29 Sep | | Born | George Anton von Rodenstein † | Rodenstein | Bishop of Worms, Germany |
| 14 Oct | | Appointed | Giovanni Andrea Caligari † | Bishop of Bertinoro, Italy |
| 17 Oct | | Born | Paweł Piasecki † | Piaski | Bishop of Chełm, Poland |
| 21 Oct | 54.8 | Appointed | Francesco Bossi † | Bishop of Novara, Italy |
| Appointed | Pedro Coderos † | Archbishop of Otranto, Italy |
| 26 Oct | | Appointed | Miguel Espinosa † | Auxiliary Bishop of Valencia, Spain |
| Appointed | Miguel Espinosa † | Titular Bishop of Marocco o Marruecos, Titular Sees | Auxiliary Bishop of Valencia, Spain |
| Nov | | Died | Giovanni Luigi Guarini † | Bishop of Aquino, Italy |
| 4 Nov | | Appointed | Jean de Vassé † | Bishop of Lisieux, France |
| 13 Nov | | Appointed | Simão de Sá Pereira † | Bishop of Porto, Portugal |
| Appointed | Flaminio Filonardi † | Bishop of Aquino, Italy |
| 16 Nov | | Born | Federico Baldissera Bartolomeo Cornaro † | Venice | Cardinal, Cardinal-Bishop of Albano |
| 27 Nov | | Appointed | Gaspar do Casal, O.S.A. † | Bishop of Coimbra, Portugal |
| 62.9 | Appointed | Vincenzo Ercolano (Herculani), O.P. † | Bishop of Perugia, Italy |
| Appointed | António Pinheiro † | Bishop of Leiria, Portugal |
| 2 Dec | | Appointed | Jerónimo de Menezes † | Bishop of Miranda (do Douro), Portugal | Bishop of Porto, Portugal |
| 8 Dec | | Died | Gerolamo Federici † | Bishop of Lodi, Italy |
| Ordained Bishop | Flaminio Filonardi † | Bishop of Aquino, Italy |
| 9 Dec | | Appointed | Alessandro Musotti † | Bishop of Imola, Italy |
| 31 Dec | 75.0 | Died | Walerian Protasewicz † | Bishop of Vilnius, Lithuania |
| 23.6 | Succeeded | Jerzy Radziwiłł † | Cardinal, Bishop of Vilnius, Lithuania |