| Date of Death | Deceased Cardinals (37) |
| 1840.01.03 | |
| 1840.07.22 | Cardinal-Priest of S. Balbina (1823.05.16 – 1840.07.22) Bishop emeritus of Osimo (Italy) (1823.03.10 – 1824.05.23) Prefect of Sacred Congregation of Good Government (1829? – 1840.07.22) |
| 1840.11.18 | Cardinal-Bishop of Porto e Santa Rufina (1839.11.22 – 1840.11.18) Prefect of Supreme Tribunal of the Apostolic Signatura (1829.01.07 – 1840.11.18) |
| 1841.03.16 | Cardinal-Deacon of S. Agata alla Suburra (1829.05.21 – 1841.03.16) Camerlengo emeritus of Sacred College of Cardinals (1831 – 1832) |
| 1841.04.25 | Cardinal-Bishop of Sabina (1839.02.18 – 1841.04.25) Cardinal-Priest of S. Prassede in commendum (1839.02.18 – 1841.04.25) Camerlengo of Sacred College of Cardinals (1841 – 1841.04.25) |
| 1841.08.17 | Cardinal-Bishop emeritus of Sabina (1833.04.15 – 1838.11.21) Vicar General for the Vicariate of Rome emeritus of Roma (Italy) (1834.11.21 – 1838.11.21) |
| 1841.12.18 | Cardinal-Priest of S. Susanna (1835.07.24 – 1841.12.18) Patriarch emeritus of Constantinople (1823.05.16 – 1835.04.06) Vicar General for the Vicariate of Rome of Roma (Italy) (1838.11.30 – 1841.12.18) |
| 1842.03.22 | Cardinal-Priest of S. Maria degli Angeli (1816.04.29 – 1842.03.22) Archbishop-Bishop of Novara (Italy) (1817.10.01 – 1842.03.22) |
| 1842.11.07 | Cardinal-Deacon of S. Maria ad Martyres (1826.07.03 – 1842.11.07) Prefect of Sacred Congregation of Good Government (1840.07.31 – 1842.11.07) |
| 1843.02.24 | Cardinal-Bishop of Albano (1839.11.22 – 1843.02.24) Camerlengo of the Holy Roman Church of Reverend Apostolic Camera (1837.10.02 – 1843.02.24) President of Sacred Congregation of the Reverend Basilica of Saint Peter (1837.07.01 – 1843.02.24) Archpriest of Papal Basilica of Saint Peter (1837.07.01 – 1843.02.24) |
| 1843.08.03 | Cardinal-Priest of S. Pudenziana (1818.05.25 – 1843.08.03) Bishop of Senigallia (Italy) (1818.04.06 – 1843.08.03) |
| 1843.10.11 | Cardinal-Priest of S. Croce in Gerusalemme (1834.12.19 – 1843.10.11) |
| 1843.11.19 | Cardinal-Bishop of Porto e Santa Rufina (1840.12.14 – 1843.11.19) Cardinal-Priest of S. Lorenzo in Damaso in commendum (1834.12.19 – 1843.11.19) Prefect of Congregation for Sacred Rites (1830.07 – 1843.11.19) Vice-Chancellor of Apostolic Chancery (1834.12.19 – 1843.11.19) |
| 1843.12.16 | Cardinal-Deacon of S. Maria in Cosmedin (1835.07.24 – 1843.12.16) Camerlengo emeritus of Sacred College of Cardinals (1836 – 1837.05.19) |
| 1844.01.01 | Cardinal-Priest of S. Sabina (1829.05.21 – 1844.01.01) Metropolitan Archbishop of Rouen (France) ([1823.07.04] 1823.11.17 – 1844.01.01) |
| 1844.01.29 | Cardinal-Priest of S. Agnese fuori le mura (1833.09.30 – 1844.01.29) Metropolitan Archbishop of Napoli (Italy) (1833.04.15 – 1844.01.29) |
| 1844.01.31 | Cardinal-Priest of S. Pancrazio (1824.05.24 – 1844.01.31) Metropolitan Archbishop of Benevento (Italy) (1824.05.03 – 1844.01.31) |
| 1844.04.19 | Cardinal-Bishop of Ostia–Velletri (1830.07.05 – 1844.04.19) Prefect of Sacred Congregation of Ceremonies (1830.07.05 – 1844.04.19) Archpriest of Papal Archbasilica of Saint John Lateran (1830.07.05 – 1844.04.19) Secretary of Commission of Roman and Universal Inquisition (1830.04.07 – 1844.04.19?) Pro-Datary of His Holiness of Apostolic Dataria (1824.11.18 – 1844.04.19) |
| 1844.09.09 | Cardinal-Priest of S. Balbina (1841.07.15 – 1844.09.09) |
| 1845.01.12 | Cardinal-Deacon of S. Nicola in Carcere (1834.06.23 – 1845.01.12) Camerlengo emeritus of Sacred College of Cardinals (1835 – 1836) |
| 1845.04.28 | Cardinal-Priest of S. Lorenzo in Panisperna (1832.12.17 – 1845.04.28) Prefect of Sacred Congregation of Indulgences and Sacred Relics (1832.07.19 – 1845.04.28?) Archpriest of Papal Basilica of Saint Mary Major (1839.06.29 – 1845.04.28) |
| 1845.05.07 | Patriarch of Lisboa (Portugal) ([1840] 1843.04.03 – 1845.05.07) |
| 1845.06.15 | Auditor General emeritus of Reverend Apostolic Camera (1844 – 1845.04.21) |
| 1845.11.26 | Cardinal-Deacon of S. Nicola in Carcere (1845.04.24 – 1845.11.26) Vice-Camerlengo of the Holy Roman Church emeritus of Reverend Apostolic Camera (1842.01.25 – 1845.04.21) |
| 1846.03.04 | Cardinal-Deacon of S. Maria in Cosmedin (1844.02.22 – 1846.03.04) Auditor General emeritus of Reverend Apostolic Camera (1842 – 1843.01.27) |
| 1846.07.05 | Metropolitan Archbishop of Aix (France) ([1835.10.06] 1836.02.01 – 1846.07.05) |
| 1846.11.19 | Cardinal-Priest of S. Marco (1829.05.21 – 1846.11.19) Metropolitan Archbishop of Milano (Italy) (1818.03.16 – 1846.11.19) |
| 1847.04.23 | Cardinal-Priest of S. Prassede (1841.07.12 – 1847.04.23) Commendatory Abbot of Subiaco (Italy) (1842 – 1847.04.23) Prefect of Sacred Congregation of the Council (1841.09.15 – 1847.04.23) |
| 1847.05.24 | Cardinal-Bishop of Ostia–Velletri (1844.06.17 – 1847.05.24) Prefect of Sacred Congregation of Ceremonies (1844.05.01 – 1847.05.24) |
| 1847.06.21 | Cardinal-Priest of S. Maria del Popolo (1831.02.28 – 1847.06.21) Metropolitan Archbishop of Sevilla (Spain) (1824.12.20 – 1847.06.21) |
| 1847.06.23 | Cardinal-Priest of S. Marco (1846.12.21 – 1847.06.23) Prefect of Sacred Congregation of Indulgences and Sacred Relics (1846.12.22 – 1847.06.23) |
| 1847.09.30 | Cardinal-Priest of S. Prisca (1835.07.24 – 1847.09.30) |
| 1847.11.22 | Cardinal-Priest of S. Maria in Traspontina (1835.07.24 – 1847.11.22) Metropolitan Archbishop of Genova (Italy) (1832.07.02 – 1847.11.22) |
| 1848.01.11 | Cardinal-Deacon of S. Maria in Domnica (1842.01.27 – 1848.01.11) Prefect emeritus of Prefecture of the Holy Apostolic Palaces (1838.09.13 – 1842.01.24) |
| 1849.03.15 | Cardinal-Priest of S. Onofrio (1838.02.15 – 1849.03.15) Prefect of Sacred Congregation of Studies (1845.05.23 – 1849.03.15) |
| 1849.04.04 | Cardinal-Bishop of Albano (1843.04.03 – 1849.04.04) Prefect of Sacred Congregation of the Council (1847.05 – 1849.04.04) |
| 1849.06.03 | Cardinal-Priest of S. Pudenziana (1844.01.25 – 1849.06.03) Secretary of State of Apostolic Secretariat (1846.08.08 – 1849.06.03) |
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