Date | Age | Event | Bishop | Title | Current Title |
unknown | | Born | Ippolito Andreassi, O.S.B. † | | Bishop of Terni, Italy |
| Born | Fabrizio Antinori † | | Bishop of Siracusa, Italy |
| Died | Alessandro Avogadro † | Coadjutor Bishop of Novigrad (Cittanova), Croatia | |
| Died | Andrzej Blinowski † | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
32.3 | Appointed | Filippo Boncompagni † | Archpriest of the Basilica di Santa Maria Maggiore {Saint Mary Major Basilica} | Cardinal, Cardinal-Priest of San Sisto |
| Died | Orazio Caracciolo † | Bishop of Venafro, Italy |
| Born | Pompeo Coronini † | | Bishop of Trieste, Italy |
| Born | Jacques d’Angennes † | | Bishop of Bayeux, France |
| Born | Girolamo de Franchis † | | Archbishop of Capua, Italy |
51.0 | Resigned | Beatus di Porta † | Bishop of Chur, Switzerland | Bishop Emeritus |
| Died | Simăo de Sá Pereira † | Bishop of Porto, Portugal |
| Appointed | Antonio Fera, O.F.M. Conv. † | Minister General of Order of Friars Minor Conventual | Bishop of Marsico Nuovo, Italy |
| Died | Leandro Garuffi Rotelli de Piis † | Bishop of Sarsina, Italy |
35.1 | Ordained Priest | Johann Otto von Gemmingen † | Priest of Augsburg, Germany | Bishop |
| Died | Lelio Giordano † | Archbishop of Rossano, Italy |
| Born | Giovanni Francesco Gozzadini † | | Bishop of Rethymo (Calamona), Greece |
| Born | Achille de Harlay de Sancy † | | Bishop Emeritus of Saint-Malo, France |
21.0 | Ordained Bishop | Christophe de L’Estang † | Bishop of Lodčve, France | Bishop of Carcassonne, France |
| Born | Raymond de La Marthonie † | | Bishop of Limoges, France |
78.0 | Resigned | Umberto Locati, O.P. † | Bishop of Bagnoregio (Bagnorea), Italy | Bishop Emeritus |
| Born | Angelo Mascardi † | | Bishop of Noli, Italy |
| Born | Gian Gaspare Melis † | | Bishop of Anagni, Italy |
68.0 | Died | Alfonso Merchante de Valeria † | Auxiliary Bishop of Burgos, Spain |
| Born | Jerónimo Manrique de Lara y de Herrera, O. de M. † | | Bishop of Santiago de Cuba |
43.0 | Installed | St. Toribio Alfonso de Mogrovejo † | Archbishop of Lima, Peru |
| Died | Giulio Monaco † | Bishop of Lucera, Italy |
52.0 | Ordained Bishop | Gregorio de Montalvo Olivera, O.P. † | Bishop of Yucatán (Mérida), México | Bishop of Cuzco, Peru |
| Born | Richard O’Connell † | | Bishop of Kerry (o Ardfert) e Aghadoe, Ireland |
| Died | Donat O’Gallagher, O.F.M. Obs. † | Bishop of Down and Connor, Ireland |
| Born | Juan Ortiz de Zárate † | | Bishop of Salamanca, Spain |
| Born | Bernardino Panicola † | | Bishop of Ravello e Scala, Italy |
| Born | Bernardino Piccoli † | | Bishop of Strongoli, Italy |
| Born | Marco Antonio (Sebastianus) Quirino, O.S.C. † | | Archbishop Emeritus of Naxos, Greece |
| Resigned | Julián Ramirez, O.S. † | Bishop of Guadix, Spain | Bishop Emeritus |
40.0 | Ordained Priest | Miguel Rangel, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Bishop of Angola e Congo |
| Born | Caesar Reghini † | | Bishop of Sarsina, Italy |
| Born | Pedro Rosales Encio † | | Bishop of Lugo, Spain |
| Born | Claude de Rueil † | | Bishop of Angers, France |
52.0 | Died | François de Salignac de La Mothe-Fénelon † | Bishop Emeritus of Sarlat, France |
69.0 | Installed | Domingo Salazar, O.P. † | Bishop of Manila, Philippines |
| Appointed | Jean (a Grignasco) Saliaschi, O.F.M. Cap. † | Auxiliary Bishop of Poitiers, France |
| Appointed | Jean (a Grignasco) Saliaschi, O.F.M. Cap. † | Titular Bishop of the Titular See | Auxiliary Bishop of Poitiers, France |
| Born | Francesco Saluzzo † | | Bishop Emeritus of Mottola (Motula), Italy |
| Born | Juan Sánchez Duque de Estrada † | | Bishop of Guadalajara, Jalisco, México |
| Born | Bernardino Scala † | | Bishop of Montefeltro, Italy |
| Died | Georges Sgurio † | Bishop of Stefaniaco e Benda, Albania |
| Born | Abraham Jan Jacek Śladkowski, O.P. † | | Auxiliary Bishop of Chełm, Poland |
| Died | Scipione Salernitano † | Bishop of Acerra, Italy |
| Born | Tommaso Sanfelice, C.R. † | | Bishop of Montepeloso, Italy |
| Died | Meliaduce Suico † | Bishop of Carinola (Calina), Italy |
| Born | Roberto Ubaldini † | | Cardinal, Bishop Emeritus of Montepulciano, Italy |
| Born | Girolamo Vidoni † | | Cardinal, Cardinal-Deacon of Santi Quattro Coronati |
| Born | Benedikt Vinković † | | Bishop of Zagreb (Agram), Croatia |
| Born | Giuliano Viviani † | | Bishop of Isola, Italy |
| Died | Franjo Župan, O.F.M. Conv. † | Bishop of Kotor (Cattaro), Montenegro | Bishop Emeritus |
Jan | | Died | Bartolomeo Ferro, O.P. † | Bishop of Terni, Italy |
| Born | Francisco Sánchez Villanueva y Vega † | | Bishop Emeritus of Islas Canarias {Canary Islands}, Spain |
1 Jan | | Born | Malatesta Baglioni † | | Bishop of Assisi, Italy |
13 Jan | | Appointed | Celso Paci † | Bishop of Castro [del Lazio], Italy |
16 Jan | | Appointed | Girolamo Petroni † | Bishop of Terni, Italy |
51.0 | Appointed | Georg von Schönenberg † | Bishop of Worms, Germany |
19 Jan | | Died | Sancho Busto de Villegas † | Bishop of Ávila, Spain |
23 Jan | | Appointed | Maciej Wielicki, O.P. † | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| Appointed | Maciej Wielicki, O.P. † | Titular Bishop of Margarita | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
25 Jan | | Professed | Ambrosio Vallejo Mejía, O. Carm. † | Member of Order of Our Lady of Mt. Carmel | Bishop of Trujillo, Peru |
30 Jan | 26.1 | Selected | Ernst von Bayern † | Bishop of Ličge, Belgium | Archbishop-Elect of Köln {Cologne}, Germany |
2 Feb | 36.0 | Ordained Bishop | Peter Binsfeld † | Titular Bishop of Azotus | Auxiliary Bishop of Trier, Germany |
13 Feb | 43.7 | Appointed | Cesare Camillo Ferrero † | Bishop of Ivrea, Italy |
| Appointed | Domenico Grimaldi † | Bishop of Savona, Italy | Archbishop of Avignon, France |
49.1 | Appointed | Jean Six † | Bishop of Saint-Omer, France |
17 Feb | | Born | Faustus Poli † | | Cardinal, Bishop of Orvieto, Italy |
20 Feb | | Appointed | Pietro Cedolini † | Bishop of Hvar (Lesina), Croatia |
49.1 | Appointed | Martino de Martini, S.J. † | Bishop of San Severo, Italy |
| Appointed | Giovanni Francesco Orefice † | Bishop of Acerno, Italy | Bishop Emeritus |
24 Feb | | Died | Giovanni Taparelli, O.P. † | Bishop of Saluzzo, Italy |
26 Feb | 65.1 | Died | Stanisław Falęcki, O. Cist. † | Auxiliary Bishop of Gniezno, Poland |
6 Mar | 65.1 | Appointed | Francisco Antonio Orantes Vélez, O.F.M. Obs. † | Bishop of Oviedo, Spain |
15 Mar | 38.0 | Confirmed | Martin von Eyb † | Bishop of Bamberg, Germany | Former Bishop-Elect |
20 Mar | | Born | Anton Crosini von Bonporto † | | Bishop of Brixen {Bressanone}, Italy |
74.5 | Died | Salvatore Pacini † | Bishop of Chiusi, Italy |
24 Mar | | Professed | Tomé de Faría, O. Carm. † | Member of Order of Our Lady of Mt. Carmel | Auxiliary Bishop of Lisboa, Portugal |
1 Apr | 63.3 | Appointed | Giovanni Battista Castelli † | Apostolic Nuncio to France | Bishop of Rimini, Italy |
3 Apr | 26.2 | Confirmed | Ernst von Bayern † | Bishop of Ličge, Belgium | Archbishop-Elect of Köln {Cologne}, Germany |
| Appointed | Angelo Peruzzi † | Bishop of Sarsina, Italy |
5 Apr | 79.2 | Died | Jakub Uchański † | Archbishop of Gniezno, Poland |
12 Apr | 42.7 | Appointed | Alberto Bolognetti † | Apostolic Nuncio to Poland | Cardinal, Bishop of Massa Marittima, Italy |
54.2 | Resigned | Giovanni Andrea Caligari † | Apostolic Nuncio to Poland | Bishop of Bertinoro, Italy |
17 Apr | 44.2 | Appointed | Jean Louis Pallavicino Ceva † | Bishop of Saluzzo, Italy | Bishop of Nice, France |
26 Apr | 69.3 | Died | Francisco Blanco Salcedo † | Archbishop of Santiago de Compostela, Spain |
28 Apr | 43.3 | Appointed | Martin Medek z Mohelnice, O. Cruc. † | Archbishop of Praha {Prague}, Czechia |
30 Apr | 43.6 | Resigned | Filippo Sega † | Apostolic Nuncio to Spain | Cardinal, Bishop of Piacenza, Italy |
May | 37.4 | Appointed | Alessandro Riario † | Prefect of the Apostolic Signatura | Cardinal, Titular Patriarch of Alexandria {Alessandria} |
6 May | 34.0 | Appointed | Lorenzo Campeggi † | Apostolic Nuncio to Venice, Italy | Bishop of Cervia, Italy |
10 May | 36.3 | Appointed | Johann Ertlin † | Auxiliary Bishop of Bamberg, Germany |
36.3 | Appointed | Johann Ertlin † | Titular Bishop of Athyra | Auxiliary Bishop of Bamberg, Germany |
38.3 | Appointed | Ludovico Maiorano, C.R.L. † | Bishop of Castellammare di Stabia, Italy |
30.6 | Appointed | Bartholomäus Scholl † | Auxiliary Bishop of Freising, Germany |
30.6 | Appointed | Bartholomäus Scholl † | Titular Bishop of Dariensis | Auxiliary Bishop of Freising, Germany |
15 May | 65.3 | Ordained Bishop | Francisco Antonio Orantes Vélez, O.F.M. Obs. † | Bishop of Oviedo, Spain |
16 May | 49.3 | Died | Flavio Orsini † | Cardinal, Bishop of Spoleto, Italy |
| Succeeded | Pietro Orsini † | Bishop of Spoleto, Italy | Bishop of Aversa, Italy |
47.3 | Died | Alessandro Sforza † | Cardinal, Bishop Emeritus of Parma, Italy |
17 May | | Died | Henrique de Távora e Brito, O.P. † | Archbishop of Goa, India |
19 May | | Installed | Girolamo Diedo † | Bishop of Crema, Italy | Bishop Emeritus |
29 May | | Appointed | Masseo Bardi, O.F.M. Obs. † | Bishop of Chiusi, Italy |
| Appointed | Tommaso Sperandio Corbelli † | Bishop of Bagnoregio (Bagnorea), Italy |
4 Jun | 71.4 | Died | Jakob von Eltz † | Archbishop of Trier, Germany |
5 Jun | 59.4 | Appointed | Afonso de Castelo-Branco † | Bishop of Faro {Algarve}, Portugal | Bishop of Coimbra, Portugal |
68.5 | Died | Martín de Córdoba Mendoza, O.P. † | Bishop of Córdoba, Spain |
21.4 | Installed | Christophe de L’Estang † | Bishop of Lodčve, France | Bishop of Carcassonne, France |
11 Jun | 63.4 | Died | Luis Tello Maldonado † | Bishop of Segovia, Spain |
15 Jun | | Resigned | Orazio Malaspina † | Apostolic Nuncio to Emperor | Bishop-Elect of Albenga, Italy |
39.4 | Appointed | Ottavio Santacroce † | Apostolic Nuncio to Emperor | Bishop of Cervia, Italy |
16 Jun | | Appointed | Anton Manicordius † | Auxiliary Bishop of Gurk, Austria |
| Appointed | Anton Manicordius † | Titular Bishop of Germanicia | Auxiliary Bishop of Gurk, Austria |
19 Jun | | Appointed | Valentin Douglas, O.S.B. † | Bishop of Laon, France |