| Date of Death | Deceased Cardinals (38) |
| 1780.04.09 | Cardinal-Priest of Ss. Bonifacio ed Alessio (1759.11.19 – 1780.04.09) Prefect of Sacred Congregation of the Propagation of the Faith (1763.04.26 – 1780.04.09) |
| 1780.04.23 | Cardinal-Deacon of S. Giorgio in Velabro (1778.07.20 – 1780.04.23) Secretary of Sacred Congregation of Good Government (1766.09.26 – 1780.04.23) |
| 1780.09.22 | Cardinal-Deacon of S. Eustachio (1770.12.12 – 1780.09.22) |
| 1780.12.04 | Cardinal-Priest of S. Maria in Trastevere (1766.12.01 – 1780.12.04) Camerlengo emeritus of Sacred College of Cardinals (1777.02.17 – 1778) |
| 1780.12.16 | Cardinal-Priest of S. Sisto (1775.12.18 – 1780.12.16) Master of the Order emeritus of Order of Preachers (Dominicans) (1756 – 1777) |
| 1780.12.16 | Cardinal-Priest of S. Bernardo alle Terme (1773.04.19 – 1780.12.16) |
| 1780.12.23 | Cardinal-Priest of S. Agostino (1770.12.12 – 1780.12.23) Prefect of Congregation for Sacred Rites (1771 – 1780.12.23) Archpriest of Papal Archbasilica of Saint John Lateran (1771 – 1780.12.23) |
| 1781.06.05 | Cardinal-Priest of S. Maria in Trastevere (1781.04.02 – 1781.06.05) Prefect emeritus of Prefecture of the Holy Apostolic Palaces (1776.05.24 – 1780.12.11) |
| 1781.12.10 | Metropolitan Archbishop of Sevilla (Spain) (1776.05.20 – 1781.12.10) |
| 1782.05.05 | Cardinal-Priest of SS. Trinità al Monte Pincio (1773.12.20 – 1782.05.05) Archbishop emeritus of Ferrara (Italy) (1773.03.15 – 1777.02.14) Camerlengo emeritus of Sacred College of Cardinals (1781.04.02 – 1782) |
| 1782.06.18 | Cardinal-Priest of S. Onofrio (1777.07.28 – 1782.06.18) |
| 1782.08.03 | Cardinal-Priest of S. Maria degli Angeli (1766.08.06 – 1782.08.03) Archbishop-Bishop of Ancona e Umana (Italy) (1766.12.01 – 1782.08.03) |
| 1782.12.09 | Cardinal-Priest of S. Stefano al Monte Celio (1771.03.04 – 1782.12.09) Patriarch emeritus of Antioch (1751.02.01 – 1766.09.26) Prefect of Sacred Congregation of Indulgences and Sacred Relics (1774? – 1782.12.09) |
| 1782.12.26 | Cardinal-Priest of S. Maria sopra Minerva (1770.12.12 – 1782.12.26) Camerlengo emeritus of Sacred College of Cardinals (1779.03.01 – 1780) |
| 1783.01.31 | Metropolitan Archbishop of Évora (Portugal) (1760.03.24 – 1783.01.31) |
| 1783.03.13 | Cardinal-Priest of S. Pietro in Montorio (1782.04.19 – 1783.03.13) |
| 1783.04.27 | Cardinal-Priest of S. Lorenzo in Lucina (1770.05.28 – 1783.04.27) Metropolitan Archbishop of Milano (Italy) (1743.07.15 – 1783.04.27) |
| 1783.07.21 | Cardinal-Deacon of S. Nicola in Carcere (1770.12.12 – 1783.07.21) Prefect emeritus of Prefecture of the Holy Apostolic Palaces (1766.07.21 – 1770.09.10) |
| 1784.01.25 | Cardinal-Priest of S. Lorenzo in Lucina (1783.07.18 – 1784.01.25) Prefect of Sacred Congregation of the Council (1775.03.22 – 1784.01.25) |
| 1784.03.23 | Cardinal-Priest of S. Maria del Popolo (1775.12.18 – 1784.03.23) |
| 1784.07.22 | Cardinal-Bishop of Palestrina (1775.04.03 – 1784.07.22) Cardinal-Priest of S. Cecilia in commendum (1775.04.03 – 1784.07.22) |
| 1785.02.23 | Cardinal-Priest of S. Pietro in Vincoli (1778.12.14 – 1785.02.23) Camerlengo emeritus of Sacred College of Cardinals (1776.01.29 – 1777) |
| 1785.06.09 | Cardinal-Priest of S. Agostino (1785.04.11 – 1785.06.09) |
| 1785.08.07 | Cardinal-Deacon emeritus of S. Maria della Scala (1735.12.19 – 1754.12.18) |
| 1785.11.15 | Cardinal-Priest of S. Maria in Ara Coeli (1783.12.15 – 1785.11.15) Camerlengo emeritus of Sacred College of Cardinals (1782.02.25 – 1783) |
| 1786.04.11 | |
| 1786.07.31 | Cardinal-Priest of S. Maria in Via (1767.04.06 – 1786.07.31) |
| 1787.01.14 | Cardinal-Deacon of S. Maria ad Martyres (1777.02.17 – 1787.01.14) Prefect of Sacred Congregation of Good Government (1773.03.26 – 1787.01.14) |
| 1787.04.04 | Cardinal-Deacon of S. Angelo in Pescheria (1773.05.10 – 1787.04.04) |
| 1787.04.04 | Cardinal-Priest of S. Maria sopra Minerva (1783.02.17 – 1787.04.04) Ecclesiastical Superior emeritus of Batavia (Netherlands) (1763 – 1775) |
| 1788.01.21 | Cardinal-Priest of S. Tommaso in Parione (1758.08.02 – 1788.01.21) Metropolitan Archbishop of Sens (France) (1753.11.26 – 1788.01.21) |
| 1788.02.29 | Cardinal-Deacon of S. Eustachio (1780.09.27 – 1788.02.29) |
| 1788.03.04 | Cardinal-Priest of S. Croce in Gerusalemme (1775.04.03 – 1788.03.04) Prefect of Congregation for Sacred Rites (1781 – 1788.03.04?) Prefect of Sacred Congregation of Indulgences and Sacred Relics (1782 – 1788.03.04) |
| 1788.09.06 | Cardinal-Priest of S. Lorenzo in Lucina (1784.09.20 – 1788.09.06) Major Penitentiary of Sacred Apostolic Penitentiary (1767.09.01 – 1788.09.06) |
| 1789.01.17 | Cardinal-Deacon of S. Agata alla Suburra (1779.12.13 – 1789.01.17) Datary of His Holiness of Apostolic Dataria (1775.03.03 – 1789.01.17) |
| 1789.01.19 | Cardinal-Deacon of S. Maria in Via Lata (1779.12.13 – 1789.01.19) |
| 1789.03.29 | Cardinal-Deacon of S. Cesareo in Palatio (1778.07.20 – 1789.03.29) Commendatory Abbot emeritus of Santa Maria di Sesto (Italy) (1768 – 1786) |
| 1789.10.12 | Cardinal-Priest of S. Silvestro in Capite (1787.01.29 – 1789.10.12) Dean emeritus of Sacred Roman Rota (1784? – 1785.02.14) |
© 2026 GCatholic.org