Metropolitan Archdiocese of Buenos Aires, Argentina 🇦🇷

Present Prelates

Metropolitan Archbishop (2023.05.26 – ...):	Archbishop Jorge Ignacio García Cuerva (57) Ordinary of Argentina of the Eastern Rite (Argentina) Apostolic Administrator of San Gregorio de Narek en Buenos Aires of the Armenians (Argentina) Grand Chancellor of Pontifical Catholic University of Argentina
Auxiliary Bishop (2014.02.14 – ...):	Bishop Alejandro Daniel Giorgi (67) Titular Bishop of Summa
Auxiliary Bishop (2024.06.19 – ...):	Bishop Pedro Bernardo Cannavó (47) Titular Bishop of Idassa
Auxiliary Bishop (2024.06.19 – ...):	Bishop Sergio Iván Dornelles (51) Titular Bishop of Eguga
Auxiliary Bishop (2024.06.19 – ...):	Bishop Alejandro Daniel Pardo (47) Titular Bishop of Fissiana

Ordinaries

Metropolitan Archbishops of Buenos Aires (Roman Rite)

Archbishop Jorge Ignacio García Cuerva (57)
(2023.05.26 – ...)

Metropolitan Archbishop of Buenos Aires (Argentina)
Ordinary of Argentina of the Eastern Rite (Argentina)
Apostolic Administrator of San Gregorio de Narek en Buenos Aires of the Armenians (Argentina)
Grand Chancellor of Pontifical Catholic University of Argentina

No apartes tu rostro del pobre

Born:	1968.04.12 (Río Gallegos, Argentina)
Ordained Priest:	1997.10.24
Consecrated Bishop:	2018.03.03

Priest of San Isidro (Argentina) (1997.10.24 – 2017.11.20)

Titular Bishop of Lacubaza (2017.11.20 – 2019.01.03)

Auxiliary Bishop of Lomas de Zamora (Argentina) (2017.11.20 – 2019.01.03)

Bishop of Río Gallegos (Argentina) (2019.01.03 – 2023.05.26)

Metropolitan Archbishop of Buenos Aires (Argentina) (2023.05.26 – ...)

Grand Chancellor of Pontifical Catholic University of Argentina (2023.05.26 – ...)

Ordinary of Argentina of the Eastern Rite (Argentina) (2023.11.28 – ...)

Apostolic Administrator of San Gregorio de Narek en Buenos Aires of the Armenians (Argentina) (2026.03.02 – ...)

Cardinal Mario Aurelio Poli (78)
(2013.03.28 – 2023.05.26)

Cardinal-Priest of S. Roberto Bellarmino
Metropolitan Archbishop emeritus of Buenos Aires (Argentina)
Ordinary emeritus of Argentina of the Eastern Rite (Argentina)

Concédeme Señor un corazón que escuche

Born:	1947.11.29 (Buenos Aires, Argentina)
Ordained Priest:	1978.11.25
Consecrated Bishop:	2002.04.20
Created Cardinal:	2014.02.22

Priest of Buenos Aires (Argentina) (1978.11.25 – 2002.02.08)

Titular Bishop of Abidda (2002.02.08 – 2008.06.24)

Auxiliary Bishop of Buenos Aires (Argentina) (2002.02.08 – 2008.06.24)

Bishop of Santa Rosa (Argentina) (2008.06.24 – 2013.03.28)

Metropolitan Archbishop of Buenos Aires (Argentina) (2013.03.28 – 2023.05.26)

Grand Chancellor of Pontifical Catholic University of Argentina (2013.03.28 – 2023.05.26)

Ordinary of Argentina of the Eastern Rite (Argentina) (2013.05.04 – 2023.11.28)

Cardinal-Priest of S. Roberto Bellarmino (2014.02.22 [2014.02.23] – ...)

Vice-President of Episcopal Conference of Argentina (2014.11.11 – 2021.11.09)

Cardinal Jorge Mario Bergoglio, S.J. (later Pope Francis)
(1998.02.28 – 2013.03.13)

Miserando atque eligendo

Born:	1936.12.17 (Flores, Buenos Aires, Argentina)
Ordained Priest:	1969.12.13
Consecrated Bishop:	1992.06.27
Created Cardinal:	2001.02.21
Elected as Supreme Pontiff:	2013.03.13
Installed as Supreme Pontiff:	2013.03.19
Died:	2025.04.21 (Vatican City State † 88)

Priest of Society of Jesus (Jesuits) (1969.12.13 – 1992.05.20)

Titular Bishop of Auca (1992.05.20 – 1997.06.03)

Auxiliary Bishop of Buenos Aires (Argentina) (1992.05.20 – 1997.06.03)

Coadjutor Archbishop of Buenos Aires (Argentina) (1997.06.03 – 1998.02.28)

Metropolitan Archbishop of Buenos Aires (Argentina) (1998.02.28 – 2013.03.13)

Grand Chancellor of Pontifical Catholic University of Argentina (1998.02.28 – 2013.03.13)

Ordinary of Argentina of the Eastern Rite (Argentina) (1998.11.06 – 2013.03.13)

Cardinal-Priest of S. Roberto Bellarmino (2001.02.21 [2001.10.14] – 2013.03.13)

Vice-President of Episcopal Conference of Argentina (2002 – 2005)

President of Episcopal Conference of Argentina (2005.11.08 – 2011.11.08)

Supreme Pontiff (2013.03.13 [2013.03.19] – 2025.04.21)

Prefect of Dicastery for Evangelisation (2022.06.05 – 2025.04.21)

Cardinal Antonio Quarracino
(1990.07.10 – 1998.02.28)

Ipsi gloria

Born:	1923.08.08 (Pollica, Italy)
Ordained Priest:	1945.12.22
Consecrated Bishop:	1962.04.08
Created Cardinal:	1991.06.28
Died:	1998.02.28 (Buenos Aires, Argentina † 74)

Priest of Mercedes (Argentina) (1945.12.22 – 1962.02.03)

Bishop of Nueve de Julio (Argentina) (1962.02.03 – 1968.08.03)

Bishop of Avellaneda (Argentina) (1968.08.03 – 1985.12.18)

General Secretary of Latin American Episcopal Council (1979 – 1983)

President of Latin American Episcopal Council (1983 – 1987)

Metropolitan Archbishop of La Plata (Argentina) (1985.12.18 – 1990.07.10)

President of Episcopal Conference of Argentina (1990 – 1996)

Metropolitan Archbishop of Buenos Aires (Argentina) (1990.07.10 – 1998.02.28)

Ordinary of Argentina of the Eastern Rite (Argentina) (1990.11.20 – 1998.02.28)

Cardinal-Priest of S. Maria della Salute a Primavalle (1991.06.28 – 1998.02.28)

Cardinal Juan Carlos Aramburu
(1975.04.22 – 1990.07.10)

Adveniat regnum tuum

Born:	1912.02.11 (Reducción, Argentina)
Ordained Priest:	1934.10.28
Consecrated Bishop:	1946.12.15
Created Cardinal:	1976.05.24
Died:	2004.11.18 (Buenos Aires, Argentina † 92)

Priest of Río Cuarto (Argentina) (1934.10.28 – 1946.10.07)

Titular Bishop of Platæa (1946.10.07 – 1953.08.28)

Auxiliary Bishop of Tucumán (Argentina) (1946.10.07 – 1953.08.28)

Bishop of Tucumán (Argentina) (1953.08.28 – 1957.02.11)

Metropolitan Archbishop of Tucumán (Argentina) (1957.02.11 – 1967.06.14)

Titular Archbishop of Turres in Byzacena (1967.06.14 – 1975.04.22)

Coadjutor Archbishop of Buenos Aires (Argentina) (1967.06.14 – 1975.04.22)

Metropolitan Archbishop of Buenos Aires (Argentina) (1975.04.22 – 1990.07.10)

Cardinal-Priest of S. Giovanni Battista dei Fiorentini (1976.05.24 – 2004.11.18)

President of Episcopal Conference of Argentina (1982 – 1985)

Cardinal Antonio Caggiano
(1959.08.15 – 1975.04.22)

Impendam et superimpendar

Born:	1889.01.30 (Coronda, Argentina)
Ordained Priest:	1912.03.23
Consecrated Bishop:	1935.03.17
Created Cardinal:	1946.02.18
Died:	1979.10.23 (Buenos Aires, Argentina † 90)

Priest of Santa Fe (Argentina) (1912.03.23 – 1934.09.13)

Bishop of Rosario (Argentina) (1934.09.13 – 1959.08.15)

Cardinal-Priest of S. Lorenzo in Panisperna (1946.02.22 – 1979.10.23)

President of Episcopal Conference of Argentina (1958 – 1970)

Metropolitan Archbishop of Buenos Aires (Argentina) (1959.08.15 – 1975.04.22)

Military Vicar of Argentina (Argentina) (1959.12.14 – 1975.04.22)

Archbishop Fermín Emilio Lafitte
(1959.03.25 – 1959.08.08)

Born:	1888.11.02 (Peyrun, France)
Ordained Priest:	1911.08.15
Consecrated Bishop:	1927.10.16
Died:	1959.08.08 (Buenos Aires, Argentina † 70)

Bishop of Córdoba (Argentina) (1927.07.07 – 1934.04.20)

Metropolitan Archbishop of Córdoba (Argentina) (1934.04.20 – 1958.01.20)

Apostolic Administrator sede plena of Buenos Aires (Argentina) (1956 – 1959.03.25)

Military Vicar of Argentina (Argentina) (1957.07.08 – 1959.08.08)

Titular Archbishop of Antiochia in Pisidia (1958.01.20 – 1959.03.25)

Coadjutor Archbishop of Buenos Aires (Argentina) (1958.01.20 – 1959.03.25)

Metropolitan Archbishop of Buenos Aires (Argentina) (1959.03.25 – 1959.08.08)

Archbishop Fermín Emilio Lafitte
(Apostolic Administrator sede plena 1956 – 1959.03.25)

Cardinal Santiago Luis Copello
(1932.09.20 – 1959.03.25)

Veni Domine Jesu

Born:	1880.01.07 (San Isidro, Argentina)
Ordained Priest:	1902.10.28
Consecrated Bishop:	1919.03.30
Created Cardinal:	1935.12.16
Died:	1967.02.09 (Roma, Italy † 87)

Priest of La Plata (Argentina) (1902.10.28 – 1918.11.08)

Auxiliary Bishop of La Plata (Argentina) (1918.11.08 – 1928.05.15)

Titular Bishop of Aulon (1918.11.08 – 1932.09.20)

Auxiliary Bishop of Buenos Aires (Argentina) (1928.05.15 – 1932.09.20)

Metropolitan Archbishop of Buenos Aires (Argentina) (1932.09.20 – 1959.03.25)

Cardinal-Priest of S. Girolamo dei Croati (1935.12.19 – 1959.12.14)

Chancellor of Apostolic Chancery (1959.03.25 – 1967.02.09)

Cardinal-Priest of S. Lorenzo in Damaso (1959.12.14 – 1967.02.09)

Archbishop José María Bottaro y Hers, O.F.M.
(1926.09.09 – 1932.07.20)

Pax et bonum

Born:	1859.10.24 (San Pedro, Argentina)
Ordained Priest:	1886.09.25
Consecrated Bishop:	1926.12.05
Died:	1935.05.11 (Buenos Aires, Argentina † 75)

Metropolitan Archbishop of Buenos Aires (Argentina) (1926.09.09 – 1932.07.20)

Titular Archbishop of Macra (1932.07.20 – 1935.05.11)

Archbishop Mariano Antonio Espinosa
(1900.08.24 – 1923.04.08)

Born:	1844.07.02 (Buenos Aires, Argentina)
Ordained Priest:	1868.04.11
Consecrated Bishop:	1893.10.22
Died:	1923.04.08 (Buenos Aires, Argentina † 78)

Priest of Buenos Aires (Argentina) (1868.04.11 – 1893.06.15)

Titular Bishop of Tiberiopolis (1893.06.15 – 1898.02.08)

Auxiliary Bishop of Buenos Aires (Argentina) (1893.06.15 – 1898.02.08)

Bishop of La Plata (Argentina) (1898.02.08 – 1900.08.24)

Metropolitan Archbishop of Buenos Aires (Argentina) (1900.08.24 – 1923.04.08)

Archbishop Vladislas Castellano
(1895.09.12 – 1900.02.06)

Born:	1834.11.23 (San Javier, Argentina)
Ordained Priest:	1858.11.18
Consecrated Bishop:	1892.11.20
Died:	1900.02.06 (San Javier, Argentina † 65)

Priest of Córdoba (Argentina) (1858.11.18 – 1892.09.24)

Titular Bishop of Anchialus (1892.09.24 – 1895.09.12)

Auxiliary Bishop of Córdoba (Argentina) (1892.09.24 – 1895.09.12)

Metropolitan Archbishop of Buenos Aires (Argentina) (1895.09.12 – 1900.02.06)

Archbishop Federico León Aneiros
(1873.07.25 – 1894.09.03)

Born:	1826.06.28 (Buenos Aires, Argentina)
Ordained Priest:	1848.10.07
Consecrated Bishop:	1870.10.23
Died:	1894.09.03 (Buenos Aires, Argentina † 68)

Titular Bishop of Aulon (1870.03.02 – 1873.07.25)

Auxiliary Bishop of Buenos Aires (Argentina) (1870.03.02 – 1873.07.25)

Metropolitan Archbishop of Buenos Aires (Argentina) (1873.07.25 – 1894.09.03)

Archbishop Mariano José de Escalada Bustillo y Zeballos
(1865.03.05 – 1870.07.28)

Born:	1799.11.26 (Buenos Aires, Argentina)
Consecrated Bishop:	1835.06.21
Died:	1870.07.28 (Roma, Italy † 70)

Titular Bishop of Aulon (1832.07.02 – 1854.06.23)

Auxiliary Bishop of Buenos Aires (Argentina) (1832.07.02 – 1854.06.23)

Bishop of Buenos Aires (Argentina) (1854.06.23 – 1865.03.05)

Metropolitan Archbishop of Buenos Aires (Argentina) (1865.03.05 – 1870.07.28)

Bishops of Buenos Aires (Roman Rite)

Bishop Mariano José de Escalada Bustillo y Zeballos (later Archbishop)
(1854.06.23 – 1865.03.05)

(see above)

Bishop Mariano Medrano y Cabrera
(1829.10.07 – 1851.04.07)

Born:	1767.09.08 (Buenos Aires, Argentina)
Ordained Priest:	1791.12.17
Consecrated Bishop:	1830.09.26
Died:	1851.04.07 († 83)

Priest of Buenos Aires (Argentina) (1791.12.17 – 1829.10.07)

Titular Bishop of Aulon (1829.10.07 – 1832.07.02)

Bishop of Buenos Aires (Argentina) (1829.10.07 – 1851.04.07)

Bishop Benito Lué y Riega
(1802.08.09 – 1812.03.22)

Born:	1753.03.12 (Lastres, Spain)
Consecrated Bishop:	1803.05.29
Died:	1812.03.22 († 59)

Bishop of Buenos Aires (Argentina) (1802.08.09 – 1812.03.22)

Bishop Pedro Inocencio Bejarano
(1797.07.03 – 1801.02.23)

Born:	1750.07.28 (Granada, Spain)
Consecrated Bishop:	1798.06.17
Died:	1818.12.13 (Mandayona, Spain † 68)

Bishop of Buenos Aires (Argentina) (1797.07.03 – 1801.02.23)

Bishop of Sigüenza (Spain) (1801.02.23 – 1818.12.13)

Bishop Manuel Azamor y Ramírez
(1785.06.27 – 1796.10.02)

Born:	1733.10.22 (Villablanca, Spain)
Consecrated Bishop:	1786.10.15
Died:	1796.10.02 (Buenos Aires, Argentina † 62)

Bishop of Buenos Aires (Argentina) ([1785.01.27] 1785.06.27 – 1796.10.02)

Bishop Sebastián Malvar y Pinto, O.F.M. (later Archbishop)
(1777.12.15 – 1783.12.15)

Born:	1720.11.23 (San Martín de Salcedo, Spain)
Consecrated Bishop:	1778.04.19
Died:	1795.09.25 (Santiago de Compostela, Spain † 74)

Bishop of Buenos Aires (Argentina) ([1777.10.19] 1777.12.15 – 1783.12.15)

Metropolitan Archbishop of Santiago de Compostela (Spain) (1783.12.15 – 1795.09.25)

Bishop Manuel Antonio de la Torre
(1762.07.14 – 1776.10.20)

Born:	1705.01.01 (Antillo de Campos, Spain)
Consecrated Bishop:	1757.07.25
Died:	1776.10.20 († 71)

Bishop of Paraguay (Paraguay) ([1756.03.23] 1756.05.24 – 1762.07.14)

Bishop of Buenos Aires (Argentina) (1762.07.14 – 1776.10.20)

Bishop José Antonio Basurco y Herrera
(1757.05.23 – 1761.02.05)

Born:	1705.06.02 (Buenos Aires, Argentina)
Consecrated Bishop:	1759.05.02
Died:	1761.02.05 († 55)

Bishop of Buenos Aires (Argentina) ([1757.04.02] 1757.05.23 – 1761.02.05)

Bishop Cayetano Marcellano y Agramont (later Archbishop)
(1749.04.21 – 1757.05.23)

Born:	1697 (Cuzco, Peru)
Consecrated Bishop:	1750.08.02
Died:	1760.08.28 († 62)

Bishop of Buenos Aires (Argentina) ([1749.01.23] 1749.04.21 – 1757.05.23)

Bishop of Trujillo (Peru) (1757.05.23 – 1758.03.13)

Metropolitan Archbishop of La Plata (Bolivia) (1758.03.13 – 1760.08.28)

Bishop José de Peralta Barrionuevo y Rocha Benavídez, O.P.
(1738.06.23 – 1746.06.14)

Born:	1699.04.24 (Lima, Peru)
Consecrated Bishop:	1740.11
Died:	1746.11.17 (Buenos Aires, Argentina † 47)

Bishop of Buenos Aires (Argentina) ([1738.05.19] 1738.06.23 – 1746.06.14)

Bishop of La Paz (Bolivia) (1746.06.14 – 1746.11.17)

Bishop Juan de Arregui, O.F.M.
(1730.11.22 – 1736.12.19)

Born:	1664 (Buenos Aires, Argentina)
Consecrated Bishop:	1733.01.25
Died:	1736.12.19 (Buenos Aires, Argentina † 71)

Bishop of Buenos Aires (Argentina) (1730.11.22 – 1736.12.19)

Bishop Pedro de Fajardo, O.SS.T.
(1713.05.22 – 1729.12.16)

Born:	1664.08.21 (Córdoba, Spain)
Consecrated Bishop:	1716.01.19
Died:	1729.12.16 (Buenos Aires, Argentina † 65)

Bishop of Buenos Aires (Argentina) (1713.05.22 – 1729.12.16)

Bishop-elect Gabriel de Aguirre y Gutiérrez, O.F.M.
(1712.06.23 – 1716.01.14)

Born:	1654.03.23 (Buenos Aires, Argentina)
Consecrated Bishop:	1717
Died:	1724.10.09 (Cusco, Peru † 70)

Bishop of Buenos Aires (Argentina) (1712.06.23 – 1716.01.14)

Bishop of Cusco (Peru) (1716.01.14 – 1724.10.09)

Bishop Antonio de Azcona Imberto
(1676.10.19 – 1700.02.19)

Born:	1618.11.05 (Estella, Spain)
Consecrated Bishop:	1677.06
Died:	1700.02.19 († 81)

Bishop of Buenos Aires (Argentina) ([1676.05.09] 1676.10.19 – 1700.02.19)

Bishop Cristóbal de la Mancha y Velazco, O.P.
(1642.01.13 – 1673.07.04)

Born:	1600 (Lima, Peru)
Consecrated Bishop:	1645.11.30
Died:	1673.07.04 († 72)

Bishop of Buenos Aires (Argentina) ([1641.08.31] 1642.01.13 – 1673.07.04)

Bishop Cristóbal de Aresti Martínez de Aguilar, O.S.B.
(1635.12.03 – 1641)

Born:	1578 (Valladolid, Spain)
Died:	1641 (Buenos Aires, Argentina † 63)

Bishop of Paraguay (Paraguay) (1629.02.12 – 1635.12.03)

Bishop of Buenos Aires (Argentina) (1635.12.03 – 1641)

Bishop Pedro Carranza Salinas, O. Carm.
(1620.03.30 – 1632.02.29)

Born:	1567 (Sevilla, Spain)
Consecrated Bishop:	1621.06.29
Died:	1632.02.29 (Buenos Aires, Argentina † 64)

Bishop of Buenos Aires (Argentina) (1620.03.30 – 1632.02.29)

Former Prelates

Coadjutor Archbishop: Archbishop Jorge Mario Bergoglio, S.J. (later Pope Francis) (1997.06.03 – 1998.02.28)
Coadjutor Archbishop: Archbishop Juan Carlos Aramburu (later Cardinal) (1967.06.14 – 1975.04.22)
Coadjutor Archbishop: Archbishop Fermín Emilio Lafitte (1958.01.20 – 1959.03.25)
Auxiliary Bishop: Bishop Gustavo Oscar Carrara (52) (later Archbishop) (2017.11.20 – 2024.11.21)
Auxiliary Bishop: Bishop José María Baliña (67) (2015.01.16 – 2023.11.21)
Auxiliary Bishop: Bishop Juan Carlos Ares (62) (2014.11.17 – 2023.05.19)
Auxiliary Bishop: Bishop Ernesto Giobando, S.J. (66) (2014.03.05 – 2024.12.12)
Auxiliary Bishop: Bishop Vicente Bokalic Iglic, C.M. (73) (later Cardinal) (2010.03.15 – 2013.12.23)
Auxiliary Bishop: Bishop Luis Alberto Fernández Alara (79) (2009.01.24 – 2013.09.10)
Auxiliary Bishop: Bishop Enrique Eguía Seguí (63) (2008.09.04 – 2023.10.28)
Auxiliary Bishop: Bishop Óscar Vicente Ojea Quintana (79) (2006.05.24 – 2009.10.07)
Auxiliary Bishop: Bishop Raúl Martín (68) (later Archbishop) (2006.03.01 – 2013.09.24)
Auxiliary Bishop: Bishop Eduardo Horacio García (70) (2003.06.21 – 2014.11.06)
Auxiliary Bishop: Bishop Mario Aurelio Poli (78) (later Cardinal) (2002.02.08 – 2008.06.24)
Auxiliary Bishop: Bishop José Antonio Gentico (2001.03.21 – 2007.04.05)
Auxiliary Bishop: Bishop Joaquín Mariano Sucunza (80) (2000.07.22 – 2025.12.30)
Auxiliary Bishop: Bishop Jorge Eduardo Lozano (71) (later Archbishop) (2000.01.04 – 2005.12.22)
Auxiliary Bishop: Bishop Horacio Ernesto Benites Astoul (1999.03.16 – 2008.12.01)
Auxiliary Bishop: Bishop Guillermo Rodríguez Melgarejo (1994.06.25 – 2003.05.30)
Auxiliary Bishop: Bishop José Luis Mollaghan (later Archbishop) (1993.07.22 – 2000.05.17)
Auxiliary Bishop: Bishop Raúl Omar Rossi (1992.05.20 – 2000.02.22)
Auxiliary Bishop: Bishop Jorge Mario Bergoglio, S.J. (later Pope Francis) (1992.05.20 – 1997.06.03)
Auxiliary Bishop: Bishop Héctor Rubén Aguer (82) (later Archbishop) (1992.02.26 – 1998.06.26)
Auxiliary Bishop: Bishop Rubén Oscar Frassia (80) (1992.02.26 – 1993.07.22)
Auxiliary Bishop: Bishop Luis Héctor Villalba (91) (later Cardinal) (1984.10.20 – 1991.07.16)
Auxiliary Bishop: Bishop Eduardo Vicente Mirás (later Archbishop) (1984.03.01 – 1993.11.20)
Auxiliary Bishop: Bishop Domingo Salvador Castagna (95) (later Archbishop) (1978.11.24 – 1984.08.28)
Auxiliary Bishop: Bishop Arnaldo Clemente Canale (1977.06.10 – 1990.07.30)
Auxiliary Bishop: Bishop José Manuel Lorenzo (1977.06.10 – 1983.11.26)
Auxiliary Bishop: Bishop Mario José Serra (1975.05.28 – 2002.02.08)
Auxiliary Bishop: Bishop Guillermo Leaden, S.D.B. (1975.05.28 – 1992.04.10)
Auxiliary Bishop: Bishop Horacio Alberto Bózzoli (later Archbishop) (1975.04.05 – 1978.07.11)
Auxiliary Bishop: Bishop Oscar Félix Villena (1962.07.26 – 1970.02.11)
Auxiliary Bishop: Bishop Manuel Augusto Cárdenas (1962.04.07 – 1975.04.22)
Auxiliary Bishop: Bishop Ernesto Segura (1962.04.07 – 1972.03.13)
Auxiliary Bishop: Bishop Jorge Carlos Carreras (1962.04.07 – 1965.06.12)
Auxiliary Bishop: Bishop Victorio Manuel Bonamín, S.D.B. (1960.01.27 – 1975.04.22)
Auxiliary Bishop: Bishop Guillermo Bolatti (later Archbishop) (1957.02.02 – 1961.07.11)
Auxiliary Bishop: Bishop Manuel Menéndez (1956.10.25 – 1961.06.12)
Auxiliary Bishop: Bishop Manuel Tato (1948.11.13 – 1961.07.11)
Auxiliary Bishop: Bishop Tomás Juan Carlos Solari (later Archbishop) (1943.08.23 – 1948.09.20)
Auxiliary Bishop: Bishop Antonio Rocca (1936.06.27 – 1975.04.22)
Auxiliary Bishop: Bishop Santiago Luis Copello (later Cardinal) (1928.05.15 – 1932.09.20)
Auxiliary Bishop: Bishop Fortunado Devoto (1927.09.02 – 1941.06.29)
Auxiliary Bishop: Bishop Miguel de Andrea (1919.12.18 – 1960.06.23)
Auxiliary Bishop: Bishop Francisco Alberti (later Archbishop) (1917 – 1921.07.13)
Auxiliary Bishop: Bishop Gregorio Ignazio Romero (1899.06.19 – 1915.02.21)
Auxiliary Bishop: Bishop Juan Nepomuceno Terrero y Escalada (1898.04.21 – 1900.12.07)
Auxiliary Bishop: Bishop Mariano Antonio Espinosa (later Archbishop) (1893.06.15 – 1898.02.08)
Auxiliary Bishop: Bishop Juan Agustín Boneo (1893.06.15 – 1898.02.07)
Auxiliary Bishop: Bishop Miguel Moises Araoz (1871.10.27 – 1883.08.12)
Auxiliary Bishop: Bishop Federico León Aneiros (later Archbishop) (1870.03.02 – 1873.07.25)
Auxiliary Bishop: Bishop Mariano José de Escalada Bustillo y Zeballos (later Archbishop) (1832.07.02 – 1854.06.23)