| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Appointed | Georg Agricola † | Bishop of Seckau, Austria |
| Born | Dominik Andrijasevic (Andriassus), O.F.M. † | Ravno | Bishop of Mostar, Bosnia and Herzegovina |
| Died | Pedro Arévalos, O.S.H. † | Bishop of Cartagena, Colombia |
| Died | Alonso Cristóbal Arguellada † | Auxiliary Bishop of Sigüenza, Spain |
| Died | Francisco Balaguier † | Bishop of Bazas, France |
| Died | Lodovico Beccatelli (Beccadelli) † | Archbishop Emeritus of Dubrovnik (Ragusa), Croatia |
| 33.2 | Resigned | St. Charles Borromeo † | Archpriest of the Basilica di Santa Maria Maggiore {Saint Mary Major Basilica} | Cardinal, Archbishop of Milano {Milan}, Italy |
| Died | Bartolomeo Capranica † | Bishop of Carinola (Calina), Italy |
| Died | Tommaso Caselli, O.P. † | Bishop of Cava (de’ Tirreni), Italy |
| Born | Lorenzo Castrucci † | Lucae | Bishop of Spoleto, Italy |
| Born | Alfonso de la Cueva-Benavides y Mendoza-Carrillo † | Bedmar, Spain | Cardinal, Cardinal-Bishop of Palestrina |
| Resigned | Carlo Cicala (Cicada) † | Bishop of Albenga, Italy | Bishop Emeritus |
| Born | Pier Paolo Crescenzi † | Rome | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| Born | Fabrizio Degli Afflitti † | Napoli | Bishop of Boiano, Italy |
| Born | Manuel Afonso de Guerra † | Guimaraes, Portugal | Bishop of Santiago de Cabo Verde |
| Died | Massimiliano Doria † | Bishop of Noli, Italy |
| Born | Alonso de Franco y Luna † | Alcalá de Henares, Spain | Bishop of La Paz, Bolivia |
| Died | Alessandro Gadaletta † | Bishop of Nusco, Italy |
| Died | Gerolamo Gaddi † | Bishop of Cortona, Italy |
| Died | Francesco Angelo Gazzino, O.P. † | Bishop of Polignano (Polinianum), Italy |
| Born | Henri de Gondi † | Paris | Cardinal, Bishop of Paris, France |
| Born | Juan Guzmán, O.F.M. † | | Archbishop of Zaragoza, Spain |
| Born | Charles de Haqueville † | | Bishop of Soissons, France |
| Resigned | Philippe de La Chambre de Maurienne, O.S.B. † | Bishop of Orange, France | Bishop Emeritus |
| Died | Jacques Leroy, O.S.B. † | Archbishop of Bourges, France |
| Born | Andrzej Lipski † | Rzeplinie | Bishop of Kraków, Poland |
| Born | Theobald Mansharter † | Speyer | Auxiliary Bishop of Speyer, Germany |
| 63.0 | Resigned | Leonardo Marini, O.P. † | Bishop of Alba (Pompea), Italy | Bishop Emeritus |
| Born | Cristóbal Martínez de Salas, O. Praem. † | Medina del Campo, Spain | Bishop of Panamá |
| Born | Antonio de Mattei (Mattheis) † | Aquila | Bishop of Castellaneta, Italy |
| Died | Andrea Minucci † | Archbishop of Zadar (Zara), Croatia |
| Born | Caesar Nardi, O.F.M. Conv. † | | Bishop of Ossero (Osor), Croatia |
| Appointed | Antioco Nin † | Bishop of Alghero, Italy |
| 51.0 | Died | Matthais Ob † | Auxiliary Bishop of Speyer, Germany |
| Resigned | Paolo Odescalchi † | Bishop of Penne e Atri, Italy | Bishop Emeritus |
| Born | Vincenzo Pagano, C.R. † | Napoli | Bishop of Acerra, Italy |
| Appointed | Pierre Paparin † | Bishop of Gap, France |
| Died | Antonio Paragües Castillejo, O.S.B. † | Archbishop of Cagliari, Italy |
| Died | Petrus Percic † | Bishop of Seckau, Austria |
| Died | Antonio Pintor Cavaro † | Bishop of Bosa, Italy |
| 57.3 | Resigned | Prospero Publicola Santacroce † | Bishop of Kisamos, Greece | Cardinal, Bishop of Albano, Italy |
| Died | Organtino Scaroli (Scazola) † | Bishop of San Marco (Argentano), Italy |
| 38.0 | Appointed | Alessandro Sforza † | Archpriest of the Basilica di Santa Maria Maggiore {Saint Mary Major Basilica} | Cardinal, Bishop Emeritus of Parma, Italy |
| Born | Pedro da Silva Sampaio † | Guarda, Portugal | Bishop of Săo Salvador da Bahia, Brazil |
| Born | Girolamo Tantucci † | | Bishop of Grosseto, Italy |
| Died | Francisco Tomás † | Bishop of Ampurias e Civita, Italy |
| Died | Miguel Torcella † | Bishop of Anagni, Italy |
| Died | Giovanni Francesco Verdurae † | Bishop of Chiron, Greece |
| Born | Eustachy Wołłowicz † | | Bishop of Vilnius, Lithuania |
| 23 Jan | | Appointed | Gregorio Forbicini † | Bishop of Strongoli, Italy |
| Appointed | Giulio Ricci † | Bishop of Muro Lucano, Italy | Bishop of Teramo, Italy |
| 27 Jan | | Ordained Bishop | Gregorio Forbicini † | Bishop of Strongoli, Italy |
| 2 Feb | | Born | Maciej Łubieński † | Łubna | Archbishop of Gniezno, Poland |
| 6 Feb | | Appointed | Vincenzo Cisoni, O.P. † | Bishop of Sant’Agata de’ Goti, Italy |
| Appointed | Baldassarre Giustiniani † | Bishop of Venosa, Italy |
| Appointed | Bartolomeu Leităo † | Bishop of Santiago de Cabo Verde |
| 8 Feb | | Died | Francesco Pisani † | Bishop of Chioggia, Italy |
| 10 Feb | | Died | Gabriel de Bouvery † | Bishop of Angers, France |
| 17 Feb | | Died | Gaspar Cao, O.S.A. † | Bishop of Săo Tomé e Príncipe |
| 23 Feb | | Died | Giovambattista Ricasoli † | Bishop of Pistoia, Italy |
| 26 Feb | 60.0 | Died | Pedro Agustín y Albanell † | Bishop of Huesca, Spain |
| 3 Mar | | Appointed | Francesco Perignani † | Bishop of Cortona, Italy |
| Appointed | Cyprian Wiliński (Wiliski), O.P. † | Auxiliary Bishop of Vilnius, Lithuania |
| Appointed | Cyprian Wiliński (Wiliski), O.P. † | Titular Bishop of Methone | Auxiliary Bishop of Vilnius, Lithuania |
| 7 Mar | | Died | Adriano Bereti, O.P. † | Bishop of Capodistria (Capo d’Istria)(Koper), Slovenia |
| 83.2 | Died | Alfonso de Montufar, O.P. † | Archbishop of México, Federal District |
| 17 Mar | 66.2 | Died | Marco Antonio Amulio † | Cardinal, Bishop of Rieti, Italy |
| 55.2 | Appointed | Benedetto Lomellini † | Cardinal, Bishop of Anagni, Italy |
| Appointed | Angelo Oraboni, O.F.M. † | Archbishop of Trani, Italy |
| 4 Apr | | Died | Costantino Bonelli † | Bishop of Cittŕ di Castello, Italy |
| 12 Apr | | Died | Filip Padniewski † | Bishop of Kraków, Poland |
| 13 Apr | | Ordained Bishop | Baldassarre Giustiniani † | Bishop of Venosa, Italy |
| 15 Apr | 60.3 | Ordained Bishop | Gaspar de Quiroga y Vela † | Bishop of Cuenca, Spain | Cardinal, Archbishop of Toledo, Spain |
| 30 Apr | 48.3 | Appointed | Pedro de Feria (Martín Fernández), O.P. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 1 May | 68.3 | Died | St. Antonio (Michele) Ghislieri, O.P. † | Pope (Roma {Rome}, Italy) |
| 13 May | 70.3 | Elected | Ugo Boncompagni † | Pope (Roma {Rome}, Italy) |
| 25 May | 70.4 | Installed | Ugo Boncompagni † | Pope (Roma {Rome}, Italy) |
| 1 Jun | | Died | Pedro Carlos, O.S. † | Bishop of Gerona, Spain |
| 2 Jun | | Appointed | César Alamagna Cardona † | Bishop of Cava (de’ Tirreni), Italy |
| Appointed | Marcantonio Bobba † | Cardinal-Priest of San Marcello | Cardinal, Bishop Emeritus of Aosta, Italy |
| 23.7 | Elevated to Cardinal | Filippo Boncompagni † | Cardinal, Cardinal-Priest of San Sisto |
| Appointed | Giovanni Battista Bracelli † | Bishop of Luni e Sarzana, Italy |
| Appointed | Sisto Diuzioli † | Bishop of Carinola (Calina), Italy |
| Appointed | Pietro Francesco Ferri † | Bishop of Polignano (Polinianum), Italy |
| 47.1 | Appointed | Franciszek Krasiński † | Bishop of Kraków, Poland |
| Appointed | Antimo Marchesani † | Bishop of Cittŕ di Castello, Italy |
| Appointed | Leonardo Truchi (Trucco) † | Bishop of Noli, Italy |
| Appointed | Mariano Vittori † | Bishop of Rieti, Italy |
| 9 Jun | | Appointed | Juan Dimas Loris † | Bishop of Urgell, Spain | Bishop of Barcelona, Spain |
| Appointed | Diego González † | Bishop of Almería, Spain |
| Appointed | Giovanni Antonio Lazzari † | Bishop of Amelia, Italy |
| 16 Jun | 23.8 | Installed | Filippo Boncompagni † | Cardinal, Cardinal-Priest of San Sisto |
| Appointed | Ippolito Bosco † | Bishop of San Marco (Argentano), Italy | Bishop of Foligno, Italy |
| 32.5 | Appointed | Jakob Feucht † | Auxiliary Bishop of Bamberg, Germany |
| 32.5 | Appointed | Jakob Feucht † | Titular Bishop of Athyra | Auxiliary Bishop of Bamberg, Germany |
| Died | Vilém Prusinovský z Víckova † | Bishop of Olomouc (Olmütz), Czech Republic |
| Appointed | Jean de Tulles † | Bishop of Orange, France |
| Appointed | Antonio Vialardi, O.S.B. † | Archbishop of Bourges, France |
| 22 Jun | 32.5 | Ordained Bishop | Jakob Feucht † | Titular Bishop of Athyra | Auxiliary Bishop of Bamberg, Germany |
| Ordained Bishop | Giovanni Antonio Lazzari † | Bishop of Amelia, Italy |
| 24 Jun | | Ordained Bishop | Pietro Francesco Ferri † | Bishop of Polignano (Polinianum), Italy |
| 29 Jun | | Died | Mariano Vittori † | Bishop of Rieti, Italy |