| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Jacopo Aldobrandini † | Bishop of Troia, Italy |
| 60.0 | Died | Martín Aspi Sierra † | Bishop of Palencia, Spain |
| Died | Bernardo de Benedictis † | Bishop of Castellaneta, Italy |
| Born | Andrea Bogdani (Bogadano) † | Paga Iauania | Archbishop Emeritus of Skopje, Macedonia |
| Born | Martin Borković, O.S.P.P.E. † | Domagovich | Bishop of Zagreb (Agram), Croatia |
| Died | Jacobus Brezwiczki † | Auxiliary Bishop of Poznań, Poland |
| Born | Aniello Campagna † | Napoli | Bishop of Nusco, Italy |
| Born | Giacomo Capay y Castagner † | Calari | Bishop of Bosa, Italy |
| Died | Pietro Cartolari † | Bishop of Montefeltro, Italy |
| Resigned | Pedro de Castilho † | Bishop of Leiria, Portugal | Bishop Emeritus |
| Born | Alessandro Crescenzi, C.R.S. † | Rome | Cardinal, Bishop Emeritus of Recanati e Loreto, Italy |
| Born | Giambattista del Giudice † | Conegliano | Bishop of Poreč (Parenzo), Croatia |
| Born | Carlo Diotallevi † | | Bishop of Strongoli, Italy |
| Resigned | Bernardo del Nero, O.P. † | Bishop of Bisignano, Italy | Bishop Emeritus |
| Resigned | Lucas Duran, O.S. † | Bishop of Chiapas (Ciudad Real de Chiapas), México | Bishop of Albarracin, Spain |
| Died | Agostino Gisolfi, O.P. † | Bishop of Syros (e Milos), Greece |
| Died | Giovanni Battista Guanzato † | Bishop of Polignano (Polinianum), Italy |
| 47.0 | Died | Vittorio Guarini † | Bishop of Anagni, Italy |
| Died | Giulio Cesare Guarnieri † | Bishop of Satriano e Campagna, Italy |
| 23.0 | Ordained Priest | Johann Hasius von Lichenfeld † | Priest of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany | Prefect |
| Born | Emmeric-Marc de La Ferté † | | Bishop of Le Mans, France |
| Born | Giovanni Girolamo Lomellini † | Genoa, Italy | Cardinal, Cardinal-Priest of Sant’Onofrio |
| Born | Giovanni Battista Monti † | Ferrandinae | Bishop of San Severo, Italy |
| Died | Pompeo de Nobili † | Bishop of Ripatransone, Italy |
| Born | Luigi Omodei (Sr.) † | Milan, Italy | Cardinal, Cardinal-Priest of San Lorenzo in Lucina |
| Born | Manoel Pereira, O.P. † | Lisboa, Portugal | Bishop Emeritus of São Sebastião do Rio de Janeiro, Brazil |
| 27.0 | Ordained Priest | Alfonso Petrucci † | Priest | Bishop of Chiusi, Italy |
| 30.0 | Ordained Priest | Bogusław Radoszewski † | Priest | Bishop of Lutsk (Łuck), Ukraine |
| Died | Paolo Regio † | Bishop of Vico Equense, Italy |
| Born | Jan Różycki † | Lancicien | Bishop of Chełm, Poland |
| Born | François de Salignac de La Mothe-Fénelon † | Périgueux | Bishop of Sarlat, France |
| Born | Fabrizio Savelli † | Rome | Cardinal, Archbishop Emeritus of Salerno, Italy |
| Born | Matthaeus Scrivanelli † | Jelsa | Bishop of Ossero (Osor), Croatia |
| Resigned | Gregorio Servanzi, O.P. † | Bishop of Trevico, Italy | Bishop Emeritus |
| Born | Maurizio Solaro (di Moretta) † | | Bishop of Mondovi, Italy |
| 55.9 | Appointed | Štefan Szuhay † | Archbishop of Kalocsa, Hungary |
| 55.9 | Appointed | Štefan Szuhay † | Bishop of Nitra, Slovakia | Archbishop of Kalocsa, Hungary |
| Died | Toma Ursini, O.F.M. † | Archbishop of Bar (Antivari), Montenegro |
| Ordained Bishop | Domingo Valderrama y Centeno, O.P. † | Archbishop of Santo Domingo, Dominican Republic | Bishop of La Paz, Bolivia |
| Born | Gabriel Vázquez Saavedra y Rojas † | Madrid | Bishop of Coria, Spain |
| 24.0 | Ordained Priest | Peter Wall † | Priest of Augsburg, Germany | Auxiliary Bishop |
| Jan | 64.0 | Appointed | Piotr Tylicki † | Bishop of Kraków, Poland |
| 2 Jan | | Died | Jean-François Berliet † | Archbishop of Tarentaise (Moûtiers-en-Tarentaise), France |
| 7 Jan | 44.0 | Died | Azarias Friton, O.P. † | Archbishop of Nachitschewan (Naxivan, Nakhtchevan, Nakhchivan), Armenia |
| 11 Jan | | Died | Camillo Olario (Aulari) † | Bishop of Bobbio, Italy |
| 14 Jan | 38.0 | Ordained Bishop | Marcello Lante della Rovere † | Bishop of Todi, Italy | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 23 Jan | | Died | Alessandro Musotti † | Bishop of Imola, Italy |
| Died | Massimiliano Palumbara (Palombella) † | Archbishop of Benevento, Italy |
| 24 Jan | | Appointed | Camillo Borghese † | Archbishop of Siena, Italy |
| 29 Jan | | Appointed | Paolo (Pietro Maria) del Lago (Bisnetti), O.F.M. † | Bishop of Trivento, Italy |
| Appointed | Juan Antonio Bovio, O. Carm. † | Bishop of Molfetta, Italy |
| 45.1 | Appointed | Martino Mira † | Bishop of Cefalù, Italy |
| Feb | | Died | Matteo Sanminiato † | Archbishop of Chieti, Italy |
| 3 Feb | 79.4 | Died | Tolomeo Gallio † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 7 Feb | 55.1 | Appointed | Pompeio Arrigoni † | Cardinal, Archbishop of Benevento, Italy |
| 67.1 | Appointed | Girolamo Bernerio, O.P. † | Cardinal-Bishop of Porto e Santa Rufina | Cardinal, Bishop of Ascoli Piceno, Italy |
| 27.1 | Appointed | Orazio Maffei † | Cardinal-Priest of Santi Marcellino e Pietro | Cardinal, Archbishop of Chieti, Italy |
| Appointed | Diego Mardones, O.P. † | Bishop of Córdoba, Spain |
| 45.1 | Appointed | Giovanni Garzia Millini † | Archbishop (Personal Title) of Imola, Italy | Cardinal, Cardinal-Bishop of Frascati |
| 69.1 | Appointed | Mariano Pierbenedetti † | Cardinal-Priest of Santa Maria in Trastevere | Cardinal, Cardinal-Bishop of Frascati |
| 65.3 | Appointed | Domenico Pinelli (Sr.) † | Cardinal-Bishop of Ostia (e Velletri) | Cardinal, Bishop Emeritus of Fermo, Italy |
| Appointed | Andreas Richliczki † | Titular Bishop of Aenus |
| 66.1 | Appointed | Antonio Maria Sauli † | Bishop of Albano, Italy | Cardinal, Bishop of Ostia (-Velletri), Italy |
| 11 Feb | | Ordained Bishop | Juan Antonio Bovio, O. Carm. † | Bishop of Molfetta, Italy |
| 12 Feb | | Appointed | Marco Antonio Bellini † | Bishop of Bobbio, Italy |
| 60.7 | Appointed | Alfonso de la Mota y Escobar † | Bishop of Tlaxcala, México |
| 64.1 | Appointed | Anselmo Marzato, O.F.M. Cap. † | Cardinal, Archbishop of Chieti, Italy |
| 17 Feb | 57.1 | Appointed | Gerolamo Arsengo, O.F.M. Conv. † | Bishop of Bacău, Romania |
| 19 Feb | 41.1 | Appointed | Consalvo Duranti † | Bishop of Montefeltro, Italy |
| 24 Feb | 55.1 | Ordained Bishop | Pompeio Arrigoni † | Cardinal, Archbishop of Benevento, Italy |
| 64.1 | Ordained Bishop | Anselmo Marzato, O.F.M. Cap. † | Cardinal, Archbishop of Chieti, Italy |
| 7 Mar | | Born | Innico Caracciolo (Sr.) † | Naples | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 10 Mar | | Died | Ascanio Libertano (Libertani) † | Bishop of Cagli, Italy |
| 13 Mar | 30.2 | Ordained Bishop | Theodor Riphaen † | Titular Bishop of Cyrene | Auxiliary Bishop of Köln {Cologne}, Germany |
| 19 Mar | | Appointed | Diego (Didaco) Alvarez, O.P. † | Archbishop of Trani, Italy |
| 25 Mar | | Died | Johann Ertlin † | Auxiliary Bishop of Bamberg, Germany |
| 2 Apr | 59.3 | Appointed | Gian Giacomo Amati † | Bishop of Bisignano, Italy |
| Appointed | Mario Cossa † | Bishop of Montalcino, Italy |
| 17 Apr | 21.6 | Ordained Bishop | Armand-Jean du Plessis de Richelieu † | Bishop of Luçon, France | Cardinal, Bishop Emeritus |
| 27 Apr | | Died | Francisco Robuster Sala † | Bishop of Vic, Spain |
| 28 Apr | | Died | Christophe de la Vallée † | Bishop of Toul, France |
| 2 May | | Born | Luis Crespi y Borja, C.O. † | Valencia | Bishop of Plasencia, Spain |
| 7 May | 62.3 | Appointed | Juan Pedro González de Mendoza, O.S.A. † | Bishop of Chiapas (Ciudad Real de Chiapas), México | Bishop of Popayán, Colombia |
| Appointed | Sebastiano Poggi † | Bishop of Ripatransone, Italy | Bishop Emeritus |
| 13 May | | Died | Andrés de Casso, O.P. † | Bishop of León, Spain |
| 14 May | 64.4 | Appointed | Timocrate (Democrate) Aloigi (Aloisi) † | Bishop of Cagli, Italy |
| 59.4 | Appointed | Wojciech Baranowski † | Bishop of Włocławek (Kujawy, Kalisze), Poland | Archbishop of Gniezno, Poland |
| 61.4 | Appointed | Barzellino de’ Barzellini † | Bishop of Satriano e Campagna, Italy |
| 29.6 | Appointed | Guido Bentivoglio d’Aragona † | Titular Archbishop of Colossae {Rhodes} | Cardinal, Cardinal-Bishop of Palestrina |
| Appointed | Pietro Antonio Da Ponte, C.R. † | Bishop of Troia, Italy |
| 20 May | 64.4 | Ordained Bishop | Timocrate (Democrate) Aloigi (Aloisi) † | Bishop of Cagli, Italy |
| 61.4 | Ordained Bishop | Barzellino de’ Barzellini † | Bishop of Satriano e Campagna, Italy |
| Ordained Bishop | Pietro Antonio Da Ponte, C.R. † | Bishop of Troia, Italy |
| Ordained Bishop | Sebastiano Poggi † | Bishop of Ripatransone, Italy | Bishop Emeritus |
| 22 May | | Born | Girolamo Buonvisi † | Lucca | Cardinal, Bishop of Lucca, Italy |
| 45.4 | Resigned | Giovanni Garzia Millini † | Apostolic Nuncio to Spain | Cardinal, Cardinal-Bishop of Frascati |
| 27 May | 29.6 | Ordained Bishop | Guido Bentivoglio d’Aragona † | Titular Archbishop of Colossae {Rhodes} | Cardinal, Cardinal-Bishop of Palestrina |
| 28 May | 41.4 | Appointed | Jean de Pélissier, O.S.B. † | Bishop of Apt, France |
| 3 Jun | | Died | Orazio Marzani † | Bishop of San Severino (Marche), Italy |
| 6 Jun | | Born | Andrea Massa † | Melfi | Bishop of Gallipoli, Italy |
| 24 Jun | | Ordained Bishop | Tomás Espinosa † | Titular Bishop of Marocco o Marruecos, Titular Sees | Auxiliary Bishop of Valencia, Spain |
| 48.5 | Ordained Bishop | Karel Maes † | Bishop of Ypres (Ieper), Belgium | Bishop of Gent {Ghent, Gand}, Belgium |
| 25 Jun | | Appointed | Vincenzo Bonincontro, O.P. † | Bishop of Agrigento (Girgenti), Italy |
| 50.5 | Appointed | Giovanni Maria Guanzelli, O.P. † | Bishop of Polignano (Polinianum), Italy |
| Appointed | Antonio Seneca † | Bishop of Anagni, Italy |
| 30 Jun | 68.8 | Died | Cesare Baronio, C.O. † | Cardinal, Cardinal-Priest of Santi Nereo ed Achilleo |