| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Pedro Acuña Avellaneda † | | Bishop of Salamanca, Spain |
| Born | Leopoldo de Austria † | | Bishop of Córdoba, Spain |
| Born | Francesco Bandini Piccolomini † | | Archbishop of Siena, Italy |
| Died | Hugo Bauzá † | Bishop of Angoulême, France |
| Died | Jean de Beersel, O.F.M. † | Auxiliary Bishop of Liège, Belgium |
| 92.0 | Died | Pedro Beltrán (Bertrandi) † | Bishop of Tuy, Spain |
| Died | Carlo Bocconi † | Bishop of Vieste, Italy |
| Born | François Bohier † | | Bishop of Saint-Malo, France |
| Died | Johann Buxhoevden von Roppa † | Bishop of Dorpat (Tartu), Estonia |
| Born | Camillo Campeggi, O.P. † | | Bishop of Nepi e Sutri, Italy |
| Died | Pietro Paolo Capobianco † | Bishop of Sant’Agata de’ Goti, Italy |
| Died | Troilo Carafa † | Bishop of Gerace, Italy |
| Born | Giacomo Antonio Carrozza † | | Bishop of Conversano, Italy |
| Died | Johann Cippico † | Archbishop-Elect of Zadar (Zara), Croatia |
| Resigned | Thomas Clerke † | Bishop of Killala, Ireland | Bishop Emeritus |
| Born | Fabio Colonna † | | Bishop of Aversa, Italy |
| Appointed | Edmund Commerford † | Bishop of Ferns, Ireland |
| Ordained Bishop | Edmund Commerford † | Bishop of Ferns, Ireland |
| Appointed | Jaime de Conchillos, O. de M. † | Prelate of Santa Lucia del Mela, Italy | Bishop of Lérida, Spain |
| Born | Charles de Croy, O.S.B. † | | Bishop of Tournai {Doornik}, Belgium |
| Appointed | Antonio de Caro † | Bishop of Avellino e Frigento, Italy | Bishop of Nardò, Italy |
| Born | Acisclo de Moya y Contreras † | | Archbishop of Valencia, Spain |
| Died | Francesco Dentice † | Bishop-Elect of Cariati e Cerenzia, Italy |
| Appointed | Francesco della Rovere † | Bishop of Mileto, Italy | Archbishop Emeritus of Benevento, Italy |
| Born | Jan Drohojowski † | | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| Born | Guillaume Du Prat † | | Bishop of Clermont, France |
| 29.0 | Ordained Bishop | Bonifacio Ferrero † | Bishop of Ivrea, Italy | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| Born | Georg Flach, O.S.B. † | | Auxiliary Bishop of Würzburg, Germany |
| Died | Alfonso de Fonseca † | Bishop of Osma, Spain |
| Born | Girolamo Foscari † | | Bishop of Torcello (Turris), Italy |
| Died | Brynolf Gerklaksson † | Bishop of Skara, Sweden |
| Died | Maurilio Giannotti † | Bishop of Calvi Risorta, Italy |
| Born | Antonio Giustiniani, O.P. † | | Bishop of Lipari, Italy |
| Born | Pirro Gonzaga † | | Cardinal, Bishop of Modena, Italy |
| Died | Fernando Gonçalves de Miranda † | Bishop of Viseu, Portugal |
| Born | John de Hangest † | | Bishop of Noyon, France |
| Died | Istvan Harztovuyeza † | Auxiliary Bishop of Zagreb (Agram), Croatia |
| Died | Andrea Landi † | Archbishop of Candia {Crete}, Greece |
| Appointed | Joannes du Largez † | Titular Bishop of Aveneten |
| 48.3 | Resigned | Bernardino López de Carvajal y Sande † | Administrator of Avellino e Frigento, Italy | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| Died | Matteo Mancini † | Bishop of Sora, Italy |
| Died | Pedro de Munébrega † | Bishop of Mondoñedo, Spain |
| Born | Angelo Nicolini † | | Cardinal, Archbishop of Pisa, Italy |
| Died | Patrick O’Canally † | Bishop-Elect of Clogher, Ireland |
| Died | Nehemie Herve O’Cluainin, O.S.A. † | Bishop Emeritus of Clogher, Ireland |
| Appointed | János Ország de Guth † | Bishop of Sirmio (Srijem; Sirmium), Croatia | Bishop of Vác, Hungary |
| Died | Pietro Palagario, O.F.M. † | Bishop of Telese o Cerreto Sannita, Italy |
| Born | Alessandro Piccolomini † | | Bishop of Pienza, Italy |
| Died | Andrew Pictoris (Schindeler, Maler) † | Bishop of Orkney (Kirkwall), Scotland, Great Britain |
| Ordained Bishop | Kaspar Preiel † | Titular Bishop of Athyra | Auxiliary Bishop of Bamberg, Germany |
| Born | Walerian Protosewicz † | | Bishop of Vilnius, Lithuania |
| Born | Juan Quiñones Guzmán † | | Bishop of Calahorra y La Calzada, Spain |
| Professed | Christophorus Radelennes, O.P. † | Member of Order of Friars Preachers | Auxiliary Bishop of Bremen (and Hamburg), Germany |
| Appointed | Angelo Ripanti † | Bishop of Jesi, Italy |
| Resigned | Pierre de Rochechouart † | Bishop of Saintes, France | Bishop Emeritus |
| Died | Pancrazio Rotondi † | Bishop-Elect of Civitate (Città or Civita), Italy |
| Died | Giovanni Sacco † | Archbishop of Dubrovnik (Ragusa), Croatia |
| Died | William Sever (Siveyer, Senhouse), O.S.B. † | Bishop of Durham, England, Great Britain |
| Died | István de Szatmar † | Bishop of Sirmio (Srijem; Sirmium), Croatia |
| 65.0 | Died | Hans Teiste † | Bishop of Bjørgvin (Bergen), Norway |
| Appointed | John Underwood † | Titular Bishop of Chalcedon | Auxiliary Bishop of Norwich, England, Great Britain |
| Died | George Vaus † | Bishop of Whithorn-Galloway, Scotland, Great Britain |
| Born | Antoine-Charles de Vesc † | | Bishop Emeritus of Castres, France |
| Died | Martino Zapata † | Bishop of Sessa Aurunca, Italy |
| Resigned | Rutilius Quintilien Zenon † | Bishop of San Marco (Argentano), Italy | Bishop Emeritus |
| 1 Jan | 63.0 | Died | Juan Castellar y de Borja † | Cardinal, Archbishop of Monreale, Italy |
| 36.0 | Elevated to Cardinal | Sigismondo Gonzaga † | Cardinal, Cardinal-Deacon of Santa Maria Nuova |
| 5 Jan | 53.0 | Ordained Bishop | Hugh Oldham † | Bishop of Exeter, England, Great Britain |
| 63.0 | Appointed | Robert Sherborne † | Bishop of Saint David’s, Wales, Great Britain | Bishop Emeritus of Chichester, England, Great Britain |
| 11 Jan | 37.8 | Ordained Bishop | Maciej Drzewiecki † | Bishop of Przemyśl, Poland | Archbishop of Gniezno, Poland |
| 23 Jan | | Appointed | Roberto Tibaldeschi † | Bishop of Civitate (Città or Civita), Italy |
| 24 Jan | 35.0 | Appointed | Alfonso de Aragón † | Administrator of Monreale, Italy | Archbishop of Valencia, Spain |
| 30 Jan | | Died | Georg Marshalk von Ebenth † | Bishop of Bamberg, Germany |
| 2 Feb | | Ordained Bishop | Bernardo Lauri † | Bishop of Policastro, Italy |
| 5 Feb | | Died | Gilles Van Der Heyden (Merica), O. Carm. † | Auxiliary Bishop of Cambrai, France |
| 8 Feb | 65.1 | Died | Pedro Garcia † | Bishop of Barcelona, Spain |
| 9 Feb | 44.1 | Ordained Bishop | Philipp von Rosenberg † | Bishop of Speyer, Germany |
| 49.2 | Ordained Bishop | Antonio Surian, O. Cart. † | Patriarch of Venezia {Venice}, Italy |
| 12 Feb | | Appointed | Malachy O’Clowan † | Bishop of Killala, Ireland |
| 13 Feb | 35.1 | Resigned | Francisco Lloris y de Borja † | Administrator of Valence and Die, France | Cardinal, Archbishop of Trani, Italy |
| 35.1 | Selected | Georg Schenk von Limpurg † | Bishop of Bamberg, Germany |
| Appointed | Gaspard de Tournon † | Bishop of Valence and Die, France |
| 23 Feb | | Appointed | Jaime de Conchillos, O. de M. † | Bishop of Gerace, Italy | Bishop of Lérida, Spain |
| 5 Mar | 38.1 | Died | Philippe de Clèves † | Bishop of Autun, France |
| 7 Mar | | Died | Jean Calloet † | Bishop of Tréguier, France |
| 8 Mar | 56.1 | Died | Friedrich von Hohenzollern † | Bishop of Augsburg, Germany |
| 26 Mar | 45.2 | Appointed | Francesco Alidosi † | Cardinal, Bishop of Pavia, Italy |
| 31 Mar | 25.2 | Appointed | Jacques Hurault de Cheverny † | Bishop of Autun, France |
| 42.6 | Confirmed | Jakob von Liebenstein † | Archbishop of Mainz, Germany |
| Appointed | Matteo Mignano de Orsini † | Bishop of Calvi Risorta, Italy |
| 1 Apr | 28.2 | Appointed | Gianvincenzo Carafa † | Archbishop of Napoli {Naples}, Italy | Cardinal, Cardinal-Bishop of Palestrina |
| 75.0 | Resigned | Oliviero Carafa † | Administrator of Napoli {Naples}, Italy | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 61.2 | Selected | Heinrich von Lichtenau † | Bishop of Augsburg, Germany |
| 4 Apr | 50.0 | Appointed | Pietro de Accolti de Aretio † | Bishop of Ancona e Numana, Italy | Cardinal, Cardinal-Bishop of Sabina |
| Appointed | Jean Briselot, O. Carm. † | Auxiliary Bishop of Cambrai, France | Archbishop Emeritus of Oristano, Italy |
| Appointed | Jean Briselot, O. Carm. † | Titular Bishop of Berytus | Archbishop Emeritus of Oristano, Italy |
| Appointed | Eugene McChamail † | Bishop of Clogher, Ireland |
| 55.2 | Appointed | Diego de Muros † | Bishop of Mondoñedo, Spain | Bishop of Oviedo, Spain |
| Appointed | John Thoruten, O.S.B. † | Auxiliary Bishop of Canterbury, England, Great Britain |
| Appointed | John Thoruten, O.S.B. † | Titular Bishop of Syra (Suda) | Auxiliary Bishop of Canterbury, England, Great Britain |
| 18 Apr | 20.2 | Appointed | Enrique de Cardona y Enríquez † | Bishop of Barcelona, Spain | Cardinal, Archbishop of Monreale, Italy |
| 68.2 | Appointed | Giuliano Maffei (Matteis), O.F.M. † | Archbishop of Dubrovnik (Ragusa), Croatia |
| 20.2 | Appointed | Francesco Pisani † | Archbishop of Zadar (Zara), Croatia | Patriarch Emeritus of Constantinople |
| Appointed | Giovanni Ruffo de Theodoli † | Bishop of Bertinoro, Italy | Archbishop of Cosenza, Italy |
| 35.2 | Confirmed | Georg Schenk von Limpurg † | Bishop of Bamberg, Germany |
| Appointed | Thomas Wells, O.S.A. † | Auxiliary Bishop of London, England, Great Britain |
| Appointed | Thomas Wells, O.S.A. † | Titular Bishop of Sidon | Auxiliary Bishop of London, England, Great Britain |
| 28 Apr | | Appointed | Bernard Wilczek † | Archbishop of Lviv, Ukraine |
| 7 May | 61.3 | Confirmed | Heinrich von Lichtenau † | Bishop of Augsburg, Germany |
| 11 May | 63.3 | Ordained Bishop | Robert Sherborne † | Bishop of Saint David’s, Wales, Great Britain | Bishop Emeritus of Chichester, England, Great Britain |
| 14 May | 51.4 | Appointed | Juan de Vera † | Administrator of León, Spain | Cardinal, Archbishop of Salerno, Italy |
| 19 May | | Born | Giovanni Girolamo de’ Rossi † | | Bishop of Pavia, Italy |
| 23 May | | Appointed | Jacques d’Amboise † | Bishop of Clermont, France |
| 51.9 | Resigned | Francesco Soderini † | Bishop of Cortona, Italy | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 25 May | | Appointed | Guglielmo Capponi † | Bishop of Cortona, Italy |
| 27 May | 34.4 | Appointed | Galeotto Franciotti della Rovere † | Administrator of Cremona, Italy | Cardinal, Bishop of Lucca, Italy |
| 50.2 | Died | Ascanio Maria Sforza † | Cardinal, Administrator of Pavia, Italy |
| 29 May | | Died | Herlog Vigleiksson Korning (Corntigi) † | Bishop of Oslo, Norway |
| 30 May | 30.4 | Appointed | Federico Sanseverino † | Apostolic Administrator of Novara, Italy | Cardinal, Apostolic Administrator Emeritus |
| 31 May | | Appointed | Antoine de Feurs † | Bishop of Nevers, France | Former Bishop-Elect |
| Died | Louis Poto † | Bishop of Lectoure, France |
| Jun | | Born | Giulio Magnani, O.F.M. Conv. † | | Bishop of Calvi Risorta, Italy |
| 6 Jun | | Died | Thomas Ghisleri † | Bishop of Jesi, Italy |
| Appointed | Thomas Fowler † | Titular Bishop of Lachorens | Auxiliary Bishop of Hereford, England, Great Britain |
| Resigned | Heinrich von Höwen (Hewen) † | Bishop of Chur, Switzerland | Bishop Emeritus |
| 34.4 | Appointed | Paul Ziegler von Ziegelberg † | Bishop of Chur, Switzerland |
| 13 Jun | | Resigned | Étienne Blosset de Carrouges † | Bishop of Lisieux, France | Bishop Emeritus |
| 16 Jun | | Appointed | Jean † | Titular Bishop of Sebaste in Cilicia |
| 27 Jun | | Appointed | Jean Le Veneur † | Bishop of Lisieux, France | Cardinal, Bishop Emeritus |
| Appointed | Diego de Ortiz de Vilhegas † | Bishop of Viseu, Portugal |
| Appointed | Juan de Sepúlveda † | Bishop of Tuy, Spain | Bishop Emeritus of Malta |