| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Appointed | Martin Bogdan † | Bishop of Zagreb (Agram), Croatia |
| Died | Gerolamo Cappello, O.F.M. Conv. † | Bishop of Termoli, Italy |
| 47.5 | Resigned | Ulderico Carpegna † | Bishop of Todi, Italy | Cardinal, Bishop Emeritus |
| Born | Michel Cassagnet de Tilladet † | Paris | Bishop of Mâcon, France |
| Born | Lorenzo Casoni † | Sarzana, Italy | Cardinal, Cardinal-Priest of San Pietro in Vincoli |
| 70.0 | Died | Pietro Colletti † | Bishop of Chiron, Greece |
| Born | Manuel de Alba † | Compluti | Bishop of Barcelona, Spain |
| Born | John Dempsy † | | Bishop of Kildare and Leighlin, Ireland |
| Born | José de la Torre Orumbela † | Orihuela | Bishop of Orihuela, Spain |
| Born | István Dolny † | Tardoskedd | Bishop of Csanád, Hungary |
| Born | Juan Francisco de Padilla y San Martín, O. de M. † | Lima, Peru | Bishop of Santa Cruz de la Sierra, Bolivia |
| Born | Vincenzo Maria Durazzo, C.R. † | | Bishop of Savona, Italy |
| Born | Antonio Ferrer y Mila, C.O. † | | Bishop of Segorbe, Spain |
| Born | Agostino Fieschi, C.R. † | Januen | Bishop of Accia and Mariana, France |
| 31.4 | Resigned | François Foucquet † | Bishop of Bayonne, France | Archbishop of Narbonne, France |
| 58.0 | Installed | Bartolomé González Soltero † | Bishop of Guatemala (Santiago de Guatemala), Guatemala |
| Born | Jacques de Goyon de Matignon † | Torigni-sur-Vire | Bishop Emeritus of Condom, France |
| Born | Pedro de Asensio Gregorio y Antillón † | Terulen | Bishop of Huesca, Spain |
| Died | Pedro Homem Albernaz † | Prelate of São Sebastião do Rio de Janeiro, Brazil |
| Born | Olivier Jégou de Kervilio † | Paule, France | Bishop of Tréguier, France |
| 64.3 | Resigned | Vincenzo (Gaspare) Maculani, O.P. † | Archbishop of Benevento, Italy | Cardinal, Archbishop Emeritus |
| Born | Armand de Montmorin de Saint-Hérem † | | Archbishop of Vienne, France |
| Died | Lourenço de Mendonça † | Prelate Emeritus of São Sebastião do Rio de Janeiro, Brazil |
| Born | Juan Manuel Mercadillo, O.P. † | Puebla de Almoradial | Bishop of Córdoba (Tucumán), Argentina |
| 62.0 | Ordained Bishop | Rickard O’Connell † | Bishop of Kerry (o Ardfert) e Aghadoe, Ireland |
| Born | Séraphin de Pajot de Plouy † | Paris | Bishop of Die, France |
| Born | Baltasar de la Peña Avilés † | Colmenar | Bishop of Avila, Spain |
| Died | Miguel de Portugal † | Bishop of Lamego, Portugal |
| Selected | Etienne de Puget † | Bishop of Marseille, France |
| Born | Giambattista Quaranta † | Napoli | Bishop of Larino, Italy |
| Born | François Marie Sacco, C.R. † | Savona | Bishop of Brugnato, Italy |
| Born | Eftimios Saifi † | | Archbishop of Tyr (Melkite Greek), Lebanon |
| 62.0 | Died | Juan Sánchez Duque de Estrada † | Bishop of Trujillo, Peru |
| Born | Stephanus Sciran, O.P. † | Sciahbuni | Archbishop of Nachitschewan (Naxivan, Nakhtchevan, Nakhchivan), Armenia |
| 20.5 | Professed | Emerich (Johann Anton) Sinelli, O.F.M. Cap. † | Member of Order of Friars Minor Capuchin | Bishop of Wien, Austria |
| Died | Melchor Soria Vera † | Auxiliary Bishop of Toledo, Spain |
| 55.0 | Resigned | Benedetto Ubaldi † | Bishop of Perugia, Italy | Cardinal, Bishop Emeritus |
| Born | Gaspar Alonso Valerià y Aloza, O.F.M. † | Terriente | Bishop of Lérida, Spain |
| Died | Benedikt Vinković † | Bishop of Zagreb (Agram), Croatia |
| 33.6 | Professed | Jan Kazimierz Wazy, S.J. † | Member of Society of Jesus | Cardinal, |
| 57.0 | Died | Marco Zen † | Bishop of Torcello (Turris), Italy |
| Jan | | Born | Giuseppe Falces, O.F.M. † | Ezcaray | Bishop of Pozzuoli, Italy |
| Born | Carlo Palma † | Urbino | Bishop of Fossombrone, Italy |
| 1 Jan | 62.0 | Ordained Bishop | Bernardino Panicola † | Bishop of Ravello e Scala, Italy |
| 3 Jan | 65.3 | Died | Rodrigo da Cunha † | Archbishop of Lisboa {Lisbon}, Portugal |
| 4 Jan | | Born | Manuel de Santo Tomás Mendoza, O.P. † | Madrid | Bishop of Málaga, Spain |
| 6 Jan | 66.0 | Died | Luigi Riccio † | Bishop of Vico Equense, Italy |
| 7 Jan | | Died | Francesco Romolo Mileti † | Bishop of Segni, Italy |
| 9 Jan | | Born | Eleonoro Pacello † | Vicentin | Bishop of Pula (Pola), Croatia |
| 10 Jan | 77.0 | Died | Consalvo Duranti † | Bishop of Montefeltro, Italy |
| 12 Jan | 46.0 | Appointed | Franciscus Manola † | Bishop of Korčula (Curzola, Cursola), Croatia |
| 50.0 | Appointed | Ottaviano Raggi † | Cardinal, Bishop of Aleria, France |
| 13 Jan | 64.0 | Appointed | Bernardo Lacabra † | Archbishop of Cagliari, Italy |
| 21 Jan | | Born | Antonio Fonseca † | Roma | Bishop of Tivoli, Italy |
| 24 Jan | | Died | Giovanni Battista Carcarasio † | Bishop of Città della Pieve, Italy |
| 1 Feb | 50.1 | Ordained Bishop | Ottaviano Raggi † | Cardinal, Bishop of Aleria, France |
| 4 Feb | 90.1 | Died | Pietro Campori † | Cardinal, Bishop of Cremona, Italy |
| 7 Feb | | Born | Ludovicus Sciamanna † | Roma | Bishop of Spoleto, Italy |
| 8 Feb | 64.1 | Ordained Bishop | Pierre d’Hardivillier † | Archbishop of Bourges, France |
| 9 Feb | 61.4 | Selected | Damián Lopez de Haro y Villarda, O.SS.T. † | Bishop of Puerto Rico (Porto Rico) |
| Appointed | Riginaldo Lucarini, O.P. † | Bishop of Città della Pieve, Italy |
| 15 Feb | | Born | García Felipe de Legazpi y Velasco Altamirano y Albornoz † | México | Bishop of Tlaxcala, México |
| 16 Feb | | Born | Rodrigo de Moura Telles † | Braga | Archbishop of Braga, Portugal |
| 17 Feb | 52.1 | Died | Sebastiano De Paoli † | Bishop of Nepi e Sutri, Italy |
| 23 Feb | 35.1 | Appointed | Bonaventura D’Avalos, O.S.A. † | Bishop of Vulturara e Montecorvino, Italy | Bishop Emeritus of Nocera de’ Pagani, Italy |
| 48.1 | Appointed | Giulio Cesare Bergera † | Archbishop of Torino {Turin}, Italy |
| 38.1 | Appointed | Silvestro D’Afflitto, C.R. † | Bishop of Lucera, Italy |
| 46.1 | Appointed | Antonio Montecatino † | Bishop of Foligno, Italy |
| 33.1 | Appointed | Gaudenzio Poli † | Bishop of Amelia, Italy |
| 61.1 | Appointed | Alessandro Rauli † | Bishop of Vico Equense, Italy |
| Mar | 69.2 | Died | Fulcran de Barrès † | Bishop of Agde, France |
| Born | Francesco Antonio Volturale † | Napoli | Bishop of Vieste, Italy |
| 17 Mar | | Born | Fabrizio Spada † | Rome, Italy | Cardinal, Cardinal-Bishop of Palestrina |
| 19 Mar | | Born | Callisto Lodigeri, O.S.M. † | Viterbo | Bishop of Montepulciano, Italy |
| Born | Sebastião Monteiro da Vida, S.J. † | Montforte | Archbishop of São Salvador da Bahia, Brazil |
| 21 Mar | 24.1 | Ordained Priest | Pietro Petri, O.S.B. † | Priest of Order of Saint Benedict | Bishop of Colle di Val d’Elsa, Italy |
| 31 Mar | | Died | Jean de Sponde † | Bishop of Pamiers, France |
| 11 Apr | | Born | Alexander Bonaventura † | Urbinaten | Titular Bishop of Nazianzus |
| 13 Apr | | Appointed | Clemente Confetti (Confetto) † | Bishop of Acerno, Italy |
| Appointed | Alessandro Sarzilla † | Bishop of Trevico, Italy | Bishop of Sant’Angelo dei Lombardi e Bisaccia, Italy |
| Appointed | Francesco Visconti † | Bishop of Cremona, Italy | Bishop Emeritus |
| May | 46.3 | Died | Gerolamo Mascambruno † | Bishop of Isernia, Italy |
| 60.9 | Died | Antonio Ricciulli † | Archbishop of Cosenza, Italy |
| 4 May | 76.5 | Resigned | Francesco Cennini de’ Salamandri † | Bishop of Faenza, Italy | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 29.3 | Appointed | Carlo Rossetti † | Archbishop (Personal Title) of Faenza, Italy | Cardinal, Bishop |
| 7 May | 39.9 | Confirmed | Melchior Otto von Voit von Salzburg † | Bishop of Bamberg, Germany | Bishop-Elect |
| 16 May | 63.4 | Beatified | St. Jozafat Kuncewicz, O.S.B.M. † | Archbishop |
| 18 May | | Appointed | Giovanni Carlo Coppola † | Bishop of Muro Lucano, Italy |
| 34.7 | Appointed | Cesare Facchinetti † | Archbishop (Personal Title) of Senigallia, Italy | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 40.4 | Appointed | Giovan Battista Foppa, C.O. † | Archbishop of Benevento, Italy |
| 62.4 | Appointed | Bernardino Scala † | Bishop of Montefeltro, Italy |
| Died | Henri de Sponde † | Bishop Emeritus of Pamiers, France |
| Jun | 43.4 | Ordained Bishop | Heber MacMahon (McMahon) † | Bishop of Clogher, Ireland |
| 42.4 | Ordained Priest | Bartolomeo Vannini † | Priest | Bishop of Nepi e Sutri, Italy |
| 6 Jun | 87.4 | Died | Pietro Francesco Montorio † | Bishop Emeritus of Nicastro, Italy |
| 9 Jun | 40.9 | Selected | François Perrochel † | Bishop of Boulogne (-Sur-Mer), France | Bishop Emeritus |
| Born | Francisco de la Puebla González † | Pradena de Sepulveda, Spain | Bishop of Santiago de Chile |
| 12 Jun | 29.7 | Selected | Jean-François-Paul de Gondi de Retz † | Coadjutor Archbishop of Paris, France | Cardinal, Archbishop Emeritus |
| 13 Jun | 38.4 | Appointed | Jean d’Olce † | Bishop of Agde, France | Bishop of Bayonne, France |
| 14 Jun | 63.5 | Selected | Juan de Mañozca y Zamora † | Archbishop of México, Federal District |
| 17 Jun | | Succeeded | Eustachius de Chery † | Bishop of Nevers, France | Coadjutor Bishop |
| 82.5 | Died | Eustache Du Lis † | Bishop of Nevers, France |
| 21 Jun | 76.0 | Died | Pedro Apaolaza Ramírez, O.S.B. † | Archbishop of Zaragoza, Spain |
| 22 Jun | 60.5 | Appointed | Alessandro Castracani (Castracane) † | Bishop of Fano, Italy |
| 38.6 | Confirmed | Henri de Cauchon de Maupas † | Bishop of Le Puy-en-Velay, France | Bishop of Evreux, France |
| Confirmed | Jacques Lescot, O.S.A. † | Bishop of Chartres, France |
| 68.5 | Died | Lilius Lilius † | Auxiliary Bishop of Constantinople |
| 24 Jun | 38.5 | Selected | Jean d’Olce † | Bishop of Bayonne, France |
| 27 Jun | 43.5 | Appointed | Heber MacMahon (McMahon) † | Bishop of Clogher, Ireland |