| Date of Death | Deceased Cardinals (33) |
| 1810.06.21 | Cardinal-Priest of S. Onofrio (1794.02.21 – 1810.06.21) Metropolitan Archbishop of Milano (Italy) (1802.05.24 – 1810.06.21) |
| 1810.08.28 | Cardinal-Deacon of S. Eustachio (1794.09.12 – 1810.08.28) Prefect of Sacred Congregation of the Council (1800.03 – 1810.08.28) |
| 1811.01.23 | Cardinal-Bishop of Ostia–Velletri (1807.08.03 – 1811.01.23) Major Penitentiary of Sacred Apostolic Penitentiary (1801 – 1811.01.23) Prefect of Supreme Tribunal of the Apostolic Signatura (1795.02.27 – 1811.01.23) Archpriest of Papal Archbasilica of Saint John Lateran (1801 – 1811.01.23) Secretary of Commission of Roman and Universal Inquisition (1800.11.08 – 1811.01.23) |
| 1811.02.13 | Cardinal-Priest of S. Maria in Ara Coeli (1803.03.28 – 1811.02.13) |
| 1811.03.20 | Cardinal-Deacon of S. Maria in Portico (1803.03.28 – 1811.03.20) |
| 1811.03.21 | Cardinal-Bishop of Sabina (1807.08.03 – 1811.03.21) |
| 1811.09.12 | Metropolitan Archbishop of Olomouc (Czechia) (1777.12.05 – 1811.09.12) |
| 1811.10.09 | Cardinal-Priest of S. Maria degli Angeli (1804.03.26 – 1811.10.09) Secretary of State emeritus of Apostolic Secretariat (1806.06 – 1808.03) |
| 1812.01.04 | Cardinal-Priest emeritus of S. Maria in Trastevere (1789.08.03 – 1798.03.07) Prefect emeritus of Sacred Congregation of the Council (1795.09.25 – 1798.03.07) |
| 1812.09.05 | Cardinal-Priest of S. Pietro in Vincoli (1802.09.20 – 1812.09.05) Prefect emeritus of Sacred Congregation of Good Government (1803.12.06 – 1809) Camerlengo emeritus of Sacred College of Cardinals (1808 – 1809) |
| 1812.09.06 | Cardinal-Bishop of Palestrina (1809.03.27 – 1812.09.06) Cardinal-Priest of Ss. Giovanni e Paolo in commendum (1809.03.27 – 1812.09.06) Pro-Datary of His Holiness of Apostolic Dataria (1795.02.27 – 1812.09.06) |
| 1813.05.02 | Cardinal-Priest of S. Callisto (1803.09.26 – 1813.05.02) Patriarch emeritus of Antioch (1799.01.13 – 1803.07.11) Archpriest of Papal Basilica of Saint Mary Major (1803.12.28 – 1813.05.02) Camerlengo of Sacred College of Cardinals (1810 – 1813.05.02) |
| 1815.01.09 | Cardinal-Deacon of S. Maria in Domnica (1803.03.28 – 1815.01.09) |
| 1815.08.14 | Cardinal-Priest of S. Maria in Trastevere (1800.04.02 – 1815.08.14) Master of Papal Chamber emeritus of Prefecture of the Holy Apostolic Palaces (1785.02.14 – 1794.02.21) |
| 1816.02.10 | Cardinal-Bishop of Porto e Santa Rufina (1814.09.26 – 1816.02.10) Cardinal-Priest of S. Cecilia in commendum (1803.09.26 – 1816.02.10) Pro-Camerlengo of the Holy Roman Church emeritus of Reverend Apostolic Camera (1801.11.10 – 1814.05.19) |
| 1816.11.03 | Cardinal-Priest of S. Anastasia (1804.05.28 – 1816.11.03) Prefect of Sacred Congregation of Good Government (1814 – 1816.11.03) |
| 1817.01.10 | Apostolic Nuncio to Portugal (1801.12.23 – 1817.01.10) |
| 1817.04.30 | Cardinal-Deacon of S. Maria ad Martyres (1800.04.02 – 1817.04.30) President of Sacred Congregation of the Reverend Basilica of Saint Peter (1807.07.24 – 1817.04.30) |
| 1817.05.10 | Cardinal-Priest of SS. Trinità al Monte Pincio (1794.09.12 – 1817.05.10) Archbishop-Bishop emeritus of Corneto (Italy) (1794.02.21 – 1816.03.24) Archbishop-Bishop emeritus of Montefiascone (Italy) (1794.02.21 – 1816.03.24) |
| 1817.10.23 | Cardinal-Priest of Ss. Quirico e Giulitta (1817.10.01 – 1817.10.23) |
| 1818.01.02 | Cardinal-Priest of S. Giovanni a Porta Latina (1816.09.23 – 1818.01.02) |
| 1818.01.19 | Cardinal-Priest of S. Susanna (1802.05.24 – 1818.01.19) |
| 1818.03.27 | |
| 1818.07.14 | Cardinal-Deacon of S. Eustachio (1816.04.29 – 1818.07.14) |
| 1818.07.27 | Cardinal-Deacon of S. Angelo in Pescheria (1802.09.20 – 1818.07.27) Dean emeritus of Sacred Roman Rota (1792.03.21 – 1802.08.09) |
| 1818.08.11 | Cardinal-Deacon of S. Adriano al Foro (1817.11.15 – 1818.08.11) |
| 1818.09.20 | Cardinal-Priest of S. Lorenzo in Damaso (1807.08.03 – 1818.09.20) Cardinal-Priest of S. Lorenzo in Lucina in commendum (1807.08.03 – 1818.09.20) Vice-Chancellor of Apostolic Chancery (1807.08.03 – 1818.09.20) |
| 1818.10.17 | Cardinal-Bishop of Porto e Santa Rufina (1816.03.08 – 1818.10.17) Prefect of Supreme Tribunal of the Apostolic Signatura (1817.05.16 – 1818.10.17) |
| 1818.10.25 | Cardinal-Priest of S. Stefano al Monte Celio (1805.02.01 – 1818.10.25) Metropolitan Archbishop of Rouen (France) ([1802.04.09] 1802.07.05 – 1818.10.25) |
| 1819.01.20 | Metropolitan Archbishop of Olomouc (Czechia) (1811.11.26 – 1819.01.20) |
| 1819.07.21 | Cardinal-Priest of S. Onofrio (1816.04.29 – 1819.07.21) |
| 1819.09.12 | Cardinal-Priest of S. Croce in Gerusalemme (1816.04.29 – 1819.09.12) |
| 1819.10.06 | Cardinal-Priest of S. Lorenzo in Lucina (1818.12.21 – 1819.10.06) Cardinal-Priest of S. Prassede in commendum (1818.12.21 – 1819.10.06) Archpriest of Papal Basilica of Saint Mary Major (1814 – 1819.10.06) |
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