| Diocese | Type | Date Vacant | Last Bishop | Event |
|---|
| Santi Ambrogio e Carlo | Cardinal-Priest Title | 5 Aug 2017 | Dionigi Tettamanzi † | Died, Archbishop Emeritus of Milano {Milan} |
| Sant’Angelo in Pescheria | Cardinal Deaconry | 5 Jun 2019 | Elio Sgreccia † | Died, President Emeritus of the Pontifical Academy for Life |
| Sant’Apollinare alle Terme Neroniane-Alessandrine | Cardinal Deaconry | 5 Jul 2018 | Jean-Louis Pierre Tauran † | Died, President of the Pontifical Council for Interreligious Dialogue |
| San Benedetto fuori Porta San Paolo | Cardinal Deaconry | 29 Aug 2019 | Achille Silvestrini † | Died, Prefect Emeritus of the Congregation for the Oriental Churches |
| Santi Cosma e Damiano | Cardinal Deaconry | 1 May 2020 | Beniamino Stella | Appointed, Cardinal-Bishop of Porto-Santa Rufina |
| San Filippo Neri in Eurosia | Cardinal Deaconry | 22 Apr 2017 | Attilio Nicora † | Died, President Emeritus of the Administration of the Patrimony of the Apostolic See |
| Gesù Buon Pastore alla Montagnola | Cardinal Deaconry | 9 Sep 2017 | Velasio De Paolis, C.S. † | Died, President Emeritus of the Prefecture for the Economic Affairs of the Holy See |
| San Giovanni a Porta Latina | Cardinal-Priest Title | 12 May 2020 | Renato Corti † | Died, Bishop Emeritus of Novara |
| San Luigi Maria Grignion de Montfort | Cardinal-Priest Title | 8 Oct 2019 | Serafim Fernandes de Araújo † | Died, Archbishop Emeritus of Belo Horizonte, Minas Gerais |
| Santa Maria Auxiliatrice in via Tuscolana | Cardinal Deaconry | 13 Jul 2019 | Paolo Sardi † | Died, Vice-Chamberlain Emeritus of the Apostolic Chamber |
| Santa Maria Goretti | Cardinal Deaconry | 30 Dec 2019 | Prospero (Stanley) Grech, O.S.A. † | Died |
| Santa Maria in Cosmedin | Cardinal Deaconry | 26 Jun 1967 | Francesco Roberti † | Appointed, Cardinal-Priest of Santi XII Apostoli |
| Santa Maria in Domnica | Cardinal Deaconry | 26 Sep 2019 | William Joseph Levada † | Died, Prefect Emeritus of the Congregation for the Doctrine of the Faith |
| Santi Nereo ed Achilleo | Cardinal-Priest Title | 28 Jul 2018 | Theodore Edgar McCarrick | Resigned |
| Santissimo Nome di Maria al Foro Traiano | Cardinal Deaconry | 18 May 2018 | Darío Castrillón Hoyos † | Died, President Emeritus of the Pontifical Commission “Ecclesia Dei” |
| Sant’Onofrio | Cardinal-Priest Title | 9 Dec 2015 | Carlo Furno † | Died, Grand Master Emeritus of the Equestrian Order of the Holy Sepulchre of Jerusalem |
| Santa Sofia a Via Boccea | Cardinal-Priest Title | 31 May 2017 | Lubomyr Husar, M.S.U. † | Died, Major Archbishop Emeritus of Kyiv-Halyč {Kiev} (Ukrainian) |
| Santa Susanna | Cardinal-Priest Title | 20 Dec 2017 | Bernard Francis Law † | Died, Archpriest Emeritus of the Basilica di Santa Maria Maggiore {Saint Mary Major Basilica} |
| Santi Urbano e Lorenzo a Prima Porta | Cardinal Deaconry | 13 Jan 2017 | Gilberto Agustoni † | Died, Prefect Emeritus of the Apostolic Signatura |
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