| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Born | Marcantonio Agazzi † | Venezia | Bishop of Ceneda, Italy |
| Born | Alvaro Benavente, O.S.A. † | Salamanca, Spain | Vicar Apostolic of Kiam-Si {Kiangsi}, China |
| Born | Hippolyte de Béthune † | Bolainville | Bishop of Verdun, France |
| Born | Giuseppe Maria Bottari, O.F.M. Conv. † | Venetiis | Bishop of Pula (Pola), Croatia |
| Born | Johann Brunetti † | Massa di Carrara | Auxiliary Bishop of Wrocław (Breslau), Poland |
| Born | Jean-Baltazar de Cabanes de Viens † | Provence | Bishop of Vence, France |
| Born | Julián Cano y Tovar, O. Carm. † | Toletan | Bishop of Avila, Spain |
| Born | Valeriano Chierichelli † | Amerin | Bishop Emeritus of Ferentino, Italy |
| Born | Pierre Clément † | Besançon | Bishop of Périgueux (Vesuna), France |
| Died | Franciscus Cruta † | Bishop of Shkodrë (Scutari), Albania |
| Died | Kasper Działyński † | Bishop of Chelmno (Culma, Kulm), Poland |
| Born | Juan Feyjóo González de Villalobos, O. Carm. † | Villalobos | Bishop of Guadix, Spain |
| Died | Gaspar Gajosa † | Bishop of L’Aquila, Italy |
| Died | Maurice Hurley † | Bishop of Emly, Ireland |
| Died | Francesco Leonardi † | Archbishop of Bar (Antivari), Montenegro |
| 57.0 | Appointed | Jacques Raoul de La Guibourgère † | Bishop of Maillezais, France | Bishop of La Rochelle, France |
| Died | Giovanni Mascardi † | Bishop of Nebbio, France |
| Born | Francesco Masones y Nin † | Calaritan | Archbishop of Oristano, Italy |
| Born | Ladislaus Matyasovski † | Matyasoviz | Bishop of Nitra, Slovakia |
| Died | Arnauld de Maytie † | Bishop of Oloron (Oloron-Sainte-Marie), France |
| Born | Nicolás Urbán de la Mota y Haro † | Ioco Ica, Peru | Bishop of La Paz, Bolivia |
| Born | Benito Omañana † | Oviedo | Bishop of Jaén, Spain |
| Born | Juan Pérez Carpintero, O. Praem. † | Brihuega, Spain | Bishop of Comayagua, Honduras |
| Appointed | François de Péricard † | Bishop of Angoulême, France |
| Born | Franciszek Mikołaj Prażmowski † | Prazmow | Bishop of Lutsk (Łuck), Ukraine |
| Died | Biago Proto de Rubeis † | Archbishop of Messina, Italy |
| Born | Giovanni Rasponi † | Ravenna | Bishop of Forli, Italy |
| Born | Bernard (Bertrand) de Sénaux † | Toulouse | Bishop of Autun, France |
| 57.0 | Died | Francesco Sperelli † | Bishop of San Severino (Marche), Italy |
| Born | Miguel Juan de Taverner y Rubí † | Barcelona | Archbishop of Tarragona, Spain |
| Born | Jean-Baptiste de Verthamon † | Paris | Bishop of Pamiers, France |
| Born | Ercole Visconti † | Mediolanen | Apostolic Nuncio Emeritus to Germany |
| Died | Juan de Zapata y Figueroa † | Bishop of Santa Cruz de la Sierra, Bolivia |
| Died | Nicolas de Zaldivar y Zapata, O.S.A. † | Bishop-Elect of Nueva Caceres, Philippines |
| Ordained Bishop | Martín de Zelaya (Celaya) y Oláriz † | Bishop of Santiago de Cuba | Bishop Emeritus of Santiago de Cuba |
| Jan | | Born | Giovanbattista Caracciolo, C.R. † | Montesardo | Bishop of Calvi Risorta, Italy |
| Born | Konstantyn Józef Zieliński † | Prasnen | Archbishop of Lviv, Ukraine |
| 8 Jan | | Appointed | Pier Luigi Carafa, C.R. † | Bishop of Tricarico, Italy |
| 64.5 | Resigned | Pier Luigi Carafa (Sr.) † | Bishop of Tricarico, Italy | Cardinal, Bishop Emeritus |
| 51.0 | Appointed | Pomponio Spreti † | Bishop of Cervia, Italy |
| 9 Jan | | Born | Peter Anton Gaus von Homberg † | Rijeka | Bishop of Pedena, Austria |
| 12 Jan | 77.2 | Died | Juan (de la Serna) Sánchez Alonso de Guevara † | Bishop of Lugo, Spain |
| 13 Jan | | Died | Fabrice de La Bourdaisière † | Bishop of Cavaillon, France |
| 18 Jan | 52.0 | Died | Bernard Pinelli, C.R. † | Archbishop of Avignon, France |
| 20 Jan | | Died | Nicolas de Netz † | Bishop of Orléans, France |
| Feb | 64.1 | Died | Francesco Vitelli † | Archbishop of Urbino, Italy |
| 5 Feb | | Appointed | Fernando Montero Espinosa † | Archbishop of Manila, Philippines |
| Appointed | Luis Venegas Figueroa † | Bishop of Almería, Spain |
| Appointed | Maffeo Vitale, O.F.M. † | Bishop of Mantova, Italy |
| 9 Feb | | Born | Orazio Minimi † | Tuscanen | Bishop of Segni, Italy |
| 11 Feb | 42.1 | Ordained Bishop | Cristofor Segni † | Titular Archbishop of Thessalonica |
| Ordained Bishop | Maffeo Vitale, O.F.M. † | Bishop of Mantova, Italy |
| 19 Feb | 37.1 | Appointed | Domenico Carnevale † | Bishop of Isola, Italy |
| 59.1 | Appointed | Marco Antonio Coccini † | Bishop of Imola, Italy |
| 60.0 | Appointed | Marzio Ginetti † | Cardinal-Priest of San Pietro in Vincoli | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 41.1 | Appointed | Stefano Martini † | Bishop of Noli, Italy |
| 51.8 | Appointed | Bernardino Spada † | Bishop of Albano, Italy | Cardinal, Bishop of Palestrina, Italy |
| 45.1 | Resigned | Mario Theodoli † | Bishop of Imola, Italy | Cardinal, Bishop Emeritus |
| Appointed | Francisco Villagutiérrez Chumacero, O.S.A. † | Auxiliary Bishop of Toledo, Spain |
| Appointed | Francisco Villagutiérrez Chumacero, O.S.A. † | Titular Bishop of Troas | Auxiliary Bishop of Toledo, Spain |
| Mar | | Born | Marco Battista Battaglini † | Ariminen | Bishop of Cesena, Italy |
| 1 Mar | | Died | Félix Guzmán, O.P. † | Bishop of Orihuela, Spain |
| 2 Mar | | Born | Johann Kasimir Röls † | Schwandorf | Auxiliary Bishop of Augsburg, Germany |
| 14 Mar | 65.2 | Died | Pompeo Coronini † | Bishop of Trieste, Italy |
| 24 Mar | 70.2 | Died | Carlo Bovi † | Bishop of Sarsina, Italy |
| 25 Mar | | Born | Domenico Diez de Aux † | Aversa | Bishop of Gerace, Italy |
| 31 Mar | 33.2 | Ordained Priest | Johann Bischopinck † | Priest of Osnabrück, Germany | Auxiliary Bishop |
| Apr | | Died | Jean d’Estress † | Bishop of Lectoure, France |
| 8 Apr | 33.3 | Ordained Bishop | Gilbert de Choiseul du Plessis Praslin † | Bishop of (Saint-Bernard de) Comminges, France | Bishop of Tournai {Doornik}, Belgium |
| 9 Apr | 44.3 | Appointed | Gabriel Haug † | Auxiliary Bishop of Strasbourg, France |
| 44.3 | Appointed | Gabriel Haug † | Titular Bishop of Tripolis in Phoenicia | Auxiliary Bishop of Strasbourg, France |
| Appointed | Donato Pascasio, O.S.B. † | Bishop of Trevico, Italy |
| 16 Apr | | Born | Benito de Sala y de Caramany, O.S.B. † | Gerona | Cardinal, Bishop of Barcelona, Spain |
| 23 Apr | 45.3 | Appointed | Ulrich Grappler von Trappenburg † | Auxiliary Bishop of Passau, Germany |
| 45.3 | Appointed | Ulrich Grappler von Trappenburg † | Titular Bishop of Lampsacus | Auxiliary Bishop of Passau, Germany |
| Appointed | Samuel Martineau de Turé † | Bishop of Bazas, France |
| Appointed | Stanisław Zaremba, O. Cist. † | Bishop of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine |
| 24 Apr | | Died | Juan Ortiz de Zárate † | Bishop of Salamanca, Spain |
| 26 Apr | 49.6 | Selected | Antonio Marenzi † | Bishop of Trieste, Italy |
| 27 Apr | | Died | Basile Cacace, C.R. † | Auxiliary Bishop of Ravenna, Italy |
| May | | Born | Antonio della Marra, C.R. † | Barletta | Bishop of Carinola (Calina), Italy |
| 60.3 | Died | Cristoforo Memmolo, C.R. † | Bishop of Ruvo (Ruo)(di Puglia), Italy |
| 4 May | 38.3 | Selected | Andrzej Leszczyński † | Bishop of Chelmno (Culma, Kulm), Poland | Archbishop of Gniezno, Poland |
| 6 May | | Selected | Louis de La Rochefoucauld † | Bishop of Lectoure, France |
| 8 May | 40.4 | Selected | Bonaventura Claverio, O.F.M. Conv. † | Bishop of Potenza, Italy |
| 75.4 | Died | Philippe Cospéan † | Bishop of Lisieux, France |
| 12 May | | Appointed | Alessandro Sarzilla † | Bishop of Sant’Angelo dei Lombardi-Bisaccia, Italy |
| Born | Giovanni Uva, O.F.M. † | Melphiten | Archbishop of Lanciano, Italy |
| 17 May | | Born | Étienne de Champflour † | Clermont d'Auvergne | Bishop of La Rochelle, France |
| 23 May | 86.4 | Died | Richard Arthur † | Bishop of Limerick, Ireland |
| Succeeded | Edmund O’Dwyer † | Bishop of Limerick, Ireland |
| 28 May | 58.1 | Appointed | Joseph de Bergaigne, O.F.M. † | Archbishop of Cambrai, France |
| 57.2 | Appointed | Baltasar Moscoso y Sandoval † | Cardinal, Archbishop of Toledo, Spain |
| 37.0 | Elevated to Cardinal | Jan Kazimierz Wazy, S.J. † | Cardinal, |
| 31 May | 67.4 | Died | Benedetto Mandina, C.R. † | Bishop of Tropea, Italy |
| Jun | | Ordained Priest | Giacomo Carafa † | Priest | Archbishop of Rossano, Italy |
| 9 Jun | 28.4 | Ordained Deacon | Louis de Fortia-Montréal † | Deacon | Bishop of Carpentras, France |
| 12 Jun | 50.4 | Appointed | Roberto Fontana † | Bishop of Modena, Italy |
| 14 Jun | | Died | Ottavio Branciforte † | Bishop of Catania, Italy |
| 25 Jun | 37.8 | Appointed | Niccolò Albergati-Ludovisi † | Cardinal-Priest of Santa Maria degli Angeli | Cardinal, Archbishop Emeritus of Bologna, Italy |
| 32.8 | Appointed | Simeone Difnico † | Bishop of Nona (Nin), Croatia | Bishop of Feltre, Italy |
| 68.5 | Selected | Juan Gutiérrez † | Bishop of Vigevano, Italy |
| Appointed | Petar Kačić, O.F.M. † | Bishop of Makarska, Croatia |
| 76.4 | Died | Heinrich von Knöringen † | Bishop of Augsburg, Germany |
| Appointed | Ascanio Maffei † | Archbishop of Urbino, Italy |
| Appointed | Mario Montani † | Bishop of Nocera Umbra, Italy |
| 15.6 | Succeeded | Sigmund Franz von Österreich † | Bishop of Augsburg, Germany | Bishop Emeritus |
| 50.5 | Appointed | Juan Ruiz de Colmenero † | Bishop of Guadalajara, Jalisco, México |
| 59.5 | Appointed | Alessandro Tassi † | Bishop of Terracina, Priverno e Sezze, Italy |
| 52.5 | Appointed | Kaspar Zeiler † | Apostolic Administrator of Augsburg, Germany | Auxiliary Bishop |
| 27 Jun | 53.0 | Died | Achille d’Estampes de Valançay † | Cardinal, Cardinal-Deacon of Sant’Adriano al Foro |