| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Aleramo † | Bishop of León, Spain |
| Resigned | Francesco Bonaccorsi, O.F.M. † | Bishop of Acci (Accia), France | Bishop Emeritus |
| Appointed | Robert de Dangeau (Dangeul) † | Bishop of Nevers, France |
| Born | Rudolf von Diepholz † | | Bishop of Utrecht, Netherlands |
| Died | Antonio de’ Saluzzi † | Archbishop of Milano {Milan}, Italy |
| Died | Geminiano † | Bishop of Santa Giusta (Othoca), Italy |
| Appointed | Giovanni Cardella † | Bishop of Castro [del Lazio], Italy |
| Appointed | Ives Hirgouët † | Bishop of Tréguier, France |
| Died | John Icomaid † | Bishop of Kilmacduagh, Ireland |
| Resigned | Jakob Jensson, O.P. † | Bishop of Bjørgvin (Bergen), Norway | Bishop Emeritus |
| Died | Ludovico † | Bishop of Pozzuoli, Italy |
| Appointed | Ludovico † | Bishop of Massa Lubrense, Italy |
| Died | Odon de Mendousse † | Bishop of Lescar, France |
| Died | Miklós † | Bishop of Transilvania, Erdély, Siebenbürgen, Romania |
| Died | Nils Mikaelsson † | Bishop of Västerås (Westeraes), Sweden |
| Appointed | Hugues Raimbaud † | Bishop of Condom, France |
| Died | Pellegrino Rufolo † | Bishop of Ravello, Italy |
| Resigned | Giovanni de Soglio, O.M. † | Bishop of Caffa, Italy | Bishop of Mondovi, Italy |
| Died | Paolo di Sorrento † | Archbishop of Amalfi, Italy |
| Died | Thomas † | Bishop of Rieux, France |
| Died | Jean de Tournefort † | Bishop of Nice, France |
| Died | Walter Trail † | Bishop of Saint Andrews, Scotland, Great Britain |
| Died | Henry Tyrlaw (Twillow), O.F.M. † | Bishop of Annaghdown (Enach Dune), Ireland |
| Resigned | Onofrio Visdomini, O.E.S.A. † | Bishop of Comacchio, Italy | Bishop Emeritus |
| Born | Rudolf von Scherenberg † | | Bishop of Würzburg, Germany |
| 2 Jan | | Ordained Bishop | Roger Appleby † | Bishop of Ossory, Ireland | Bishop of Waterford and Lismore, Ireland |
| 3 Jan | | Appointed | Guillaume Fabri, O.F.M. † | Bishop of Périgueux (Vesuna), France |
| 12 Jan | | Died | Henryk Sorbom † | Bishop of Warmia (Ermland), Poland |
| 13 Jan | 62.0 | Died | Guillaume d’Aigrefeuille (Jr.), O.S.B. † | Cardinal, Cardinal-Priest of Santo Stefano al Monte Celio |
| 20 Jan | | Died | Philippe Froment, O.P. † | Bishop of Nevers, France |
| 24 Jan | | Appointed | Pietro Boiardi † | Bishop of Ferrara, Italy | Bishop Emeritus |
| Appointed | Nicolò Boiardi † | Bishop of Modena, Italy |
| Appointed | Niccolò Roberti † | Archbishop of Soltania (Soltaniyeh), Iran |
| 26 Jan | | Appointed | Matteo de Fabriano, O.F.M. † | Bishop of Gubbio, Italy |
| Appointed | Brian O’Hara † | Bishop of Achonry, Ireland |
| 7 Feb | | Appointed | Robert Montain † | Bishop of Meath, Ireland |
| 11 Feb | | Appointed | Pietro di Corsica † | Bishop of Ajaccio, France |
| 14 Feb | | Appointed | Milo de Grancey † | Bishop of Autun, France | Bishop Emeritus |
| 22 Feb | | Died | Johann Wepelitz † | Bishop of Havelberg, Germany |
| 23 Feb | | Appointed | Rudolf von Anhalt † | Bishop of Halberstadt, Germany |
| 25 Feb | | Appointed | Bertholdus , O.F.M. † | Bishop of Garðar, Greenland |
| Appointed | Paolo di Joannes † | Bishop of Chioggia, Italy | Bishop of Modon (Medone, Methone), Greece |
| 28 Feb | | Died | Tord Gunnarsson † | Bishop of Strängnäs (Strengnäs), Sweden |
| 9 Mar | | Died | Bernard Alamand † | Bishop of Condom, France |
| 26 Mar | | Appointed | Simon Lopa † | Bishop of Pozzuoli, Italy |
| Appointed | Pietro Benedetto di Giovanni † | Bishop of Ampurias, Italy |
| Appointed | Ludovico di Narni, O.F.M. † | Bishop of Acci (Accia), France |
| Appointed | Jens Ovesen † | Bishop of Odense, Denmark |
| Confirmed | Johann von Egloffstein † | Bishop of Würzburg, Germany |
| 28 Mar | | Appointed | Ivan de Gara † | Archbishop of Kalocsa, Hungary | Archbishop Emeritus |
| 29 Mar | | Appointed | Heinrich Vogelsang von Heisberg † | Bishop of Warmia (Ermland), Poland |
| 4 Apr | | Appointed | Jakob Jensson, O.P. † | Bishop of Vaison, France | Bishop Emeritus of Bjørgvin (Bergen), Norway |
| Appointed | Jakob Knutson † | Bishop of Bjørgvin (Bergen), Norway | Bishop of Oslo, Norway |
| 11 Apr | | Appointed | Giovanni Brancia † | Bishop of Molfetta, Italy |
| 14 Apr | | Appointed | Bertrando d’Alagno † | Archbishop of Amalfi, Italy |
| 20 Apr | | Appointed | Miklós † | Bishop of Vác, Hungary |
| 21 Apr | | Died | Gonzalo Mena Roelas † | Archbishop of Sevilla {Seville}, Spain |
| 27 Apr | | Appointed | Otto von Rohr † | Bishop of Havelberg, Germany |
| May | | Ordained Bishop | Robert de Dangeau (Dangeul) † | Bishop of Nevers, France |
| 3 May | | Died | Pierre Morel † | Bishop of Tréguier, France |
| 16 May | | Appointed | Tommaso , O.F.M. † | Bishop of Ugento, Italy |
| 21 May | | Died | Bertrand de Chanac † | Cardinal, Cardinal-Priest of Santa Pudenziana |
| 26 May | 66.4 | Died | Bl. Andrea Franchi, O.P. † | Bishop Emeritus of Pistoia, Italy |
| 1 Jun | | Appointed | Giovanni de Crancewyk † | Titular Bishop of Antarados |
| Appointed | Peter Jonsson † | Bishop of Strängnäs (Strengnäs), Sweden |
| 10 Jun | | Appointed | Cristoforo , O.E.S.A. † | Bishop of Shkodrë (Scutari), Albania | Bishop of Polignano (Polinianum), Italy |
| Died | Tideman de Winchcomb † | Bishop of Worcester, England, Great Britain |
| 2 Jul | | Appointed | Ludovico Appenditano † | Bishop of Ravello, Italy |
| Appointed | Domenico , O.F.M. † | Bishop of Santa Giusta (Othoca), Italy |
| 10 Jul | | Appointed | Giovanni , O.P. † | Bishop of Civitate (Città or Civita), Italy |
| 11 Jul | | Appointed | Pietro † | Bishop of Larino, Italy |
| 12 Jul | | Ordained Bishop | Johann von Egloffstein † | Bishop of Würzburg, Germany |
| 18 Jul | | Appointed | Paolo Oleni † | Bishop of Patti, Italy | Archbishop of Oristano, Italy |
| Appointed | Biagio da Zagabria, O.P. † | Bishop of Dagne (Danj), Albania |
| 24 Jul | | Ordained Bishop | Heinrich Vogelsang von Heisberg † | Bishop of Warmia (Ermland), Poland |
| 27 Jul | | Appointed | Leonardo Dolfin † | Administrator of Novigrad (Cittanova), Croatia | Archbishop of Candia {Crete}, Greece |
| 29 Jul | | Appointed | Pietro Grassi † | Bishop of Cremona, Italy | Bishop of Pavia, Italy |
| Aug | | Died | Simon Lopa † | Bishop of Pozzuoli, Italy |
| 8 Aug | | Appointed | Simone † | Bishop of Caffa, Italy |
| 16 Aug | | Appointed | István de Upor † | Bishop of Transilvania, Erdély, Siebenbürgen, Romania |
| 23 Aug | | Appointed | Henry Bowet † | Bishop of Bath and Wells, England, Great Britain | Archbishop of York, England, Great Britain |
| Appointed | Richard Clifford † | Bishop of Worcester, England, Great Britain | Bishop of London, England, Great Britain |
| 26 Aug | | Appointed | Philippe de Ville-sur-Illon † | Bishop of Toul, France |
| 27 Aug | | Appointed | Leonardo Dolfin † | Titular Patriarch of Alexandria {Alessandria} | Archbishop of Candia {Crete}, Greece |
| Appointed | Stefano da Fermo, O.E.S.A. † | Bishop of Krbava (Corbavia), Croatia | Bishop of Scarpanto (Karpatho), Greece |
| Appointed | John , O. Cist. † | Bishop of Derry, Ireland |
| 8 Sep | | Ordained Bishop | John Greenlaw, O.F.M. † | Titular Bishop of Soldaja (Sudak) | Auxiliary Bishop of Bath and Wells, England, Great Britain |
| 14 Sep | 51.7 | Appointed | Francesco Bembo † | Bishop of Castello, Italy |
| 46.7 | Died | Dobrogost z Nowego Dworu † | Archbishop of Gniezno, Poland |
| 26 Sep | | Appointed | Simone Margens † | Bishop of Civita (Tempio), Italy |
| 1 Oct | | Died | Scarpetta Ordelaffi † | Bishop of Forli, Italy |
| Appointed | Giovanni di Pinu, O.F.M. † | Bishop of Agrigento (Girgenti), Italy |
| 4 Oct | | Appointed | Francesco Lante, O.F.M. † | Bishop of Bergamo, Italy | Bishop of Cremona, Italy |
| 9 Oct | | Ordained Bishop | Richard Clifford † | Bishop of Worcester, England, Great Britain | Bishop of London, England, Great Britain |
| 13 Oct | | Appointed | Tommaso Torelli † | Bishop of Pozzuoli, Italy |
| 18 Oct | | Died | Pedro Martínez † | Bishop of Plasencia, Spain |
| 15 Nov | | Born | Ludovico Trevisano (Scarampi Mezzarota) † | | Cardinal, Patriarch of Aquileia, Italy |
| 16 Nov | 39.8 | Appointed | Alamanno Adimari † | Archbishop of Taranto, Italy | Cardinal, Cardinal-Priest of Sant’Eusebio |
| Appointed | Jacopo Palladini † | Archbishop (Personal Title) of Firenze, Italy | Archbishop of Spoleto, Italy |
| 20 Nov | | Ordained Bishop | Henry Bowet † | Bishop of Bath and Wells, England, Great Britain | Archbishop of York, England, Great Britain |
| Appointed | Francesco del Carretto † | Bishop of Alba (Pompea), Italy |
| 1 Dec | | Died | Pierre de Saint Martial † | Archbishop of Toulouse, France |
| 2 Dec | | Appointed | Marco † | Bishop of Carinola (Calina), Italy |
| 3 Dec | | Appointed | Adinolfo † | Bishop of Lacedonia, Italy |
| 11 Dec | | Ordained Bishop | Giovanni Niccolò delle Caselle Migliorati † | Archbishop of Ravenna, Italy | Administrator |
| 14 Dec | | Appointed | Angelo Afflitti † | Bishop of Anagni, Italy |
| Appointed | Cristoforo , O.E.S.A. † | Bishop of Polignano (Polinianum), Italy |
| Appointed | Migliorino Manfredi, O.F.M. † | Bishop of Shkodrë (Scutari), Albania |
| Appointed | Giacomo di Trevi, O.E.S.A. † | Titular Bishop of Chalcedon |
| 15 Dec | 33.9 | Appointed | Oddone Colonna † | Administrator of Palestrina | Pope (Roma {Rome}, Italy) |
| 23 Dec | | Appointed | Nicolas Passeck, O.P. † | Bishop of Sebastopolen (Sevastopolen), Georgia |
| Appointed | Otto Roder, O.P. † | Bishop of Budua (Budva), Montenegro |