| Bishops |
  Archbishop Filippo Iannone, O. Carm. (66)
Prefect of Dicastery for Legislative Texts
President of Interdicastery Commission for the Revision of the General Regulations of the Roman Curia
Secretary of Commission for Confidential Matters
Member of College for the review of appeals by clergy accused of delicta reservata
Archbishop ad personam
Bishop emeritus of Sora–Aquino–Pontecorvo (Italy)
Sub tuum præsidium |
Bishop Youhanna Ibrahim (Maronite Rite) |
  Bishop Thomas Ifeanyichukwu Obiatuegwu (58)
Titular Bishop of Horrea Cœlia
Auxiliary Bishop of Orlu (Nigeria)
| Born: | 1966.01.01 (Uli, Nigeria) | | Ordained Priest: | 1995.08.26 | | Consecrated Bishop: | 2024.03.20 |
| Priest of Orlu (Nigeria) (1995.08.26 – 2024.01.05) Titular Bishop of Horrea Cœlia (2024.01.05 – ...) Auxiliary Bishop of Orlu (Nigeria) (2024.01.05 – ...) |
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 Bishop Edmund Ilcewicz
| Born: | 1924.04.12 (Poland) | | Ordained Priest: | 1948.06.29 | | Consecrated Bishop: | 1969.05.15 | | Died: | 1981.09.12 († 57) |
| Titular Bishop of Trevico (1969.04.14 – 1981.09.12) Auxiliary Bishop of Lublin (Poland) (1969.04.14 – 1981.09.12) |
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 Bishop Antuan Ilgit, S.J. (52)
Titular Bishop of Tubernuca
Apostolic Administrator of Anatolia (Turkiye)
Auxiliary Bishop of Anatolia (Turkiye)
Senin himayen altinda | Born: | 1972.06.22 (Hersbruck, Germany) | | Ordained Priest: | 2010.06.26 | | Consecrated Bishop: | 2023.11.25 |
| Titular Bishop of Tubernuca (2023.08.28 – ...) Auxiliary Bishop of Anatolia (Turkiye) (2023.08.28 – ...) Apostolic Administrator of Anatolia (Turkiye) (2024.11.25 – ...) |
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 Bishop Everhard Illigens
| Born: | 1851.01.12 (Germany) | | Ordained Priest: | 1874.08.09 | | Consecrated Bishop: | 1909.03.28 | | Died: | 1914.01.02 († 62) |
| Titular Bishop of Germanicia (1909.02.28 – 1914.01.02) Auxiliary Bishop of Münster (Germany) (1909.02.28 – 1914.01.02) |
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  Bishop Andrej Imrich (76)
Titular Bishop of Castellum Titulianum
Auxiliary Bishop emeritus of Spiš (Slovakia)
Metanoia obœdientia et spes | Born: | 1948.01.09 (Mnišek nad Popradom, Slovakia) | | Ordained Priest: | 1974.06.08 | | Consecrated Bishop: | 1992.07.11 |
| Priest of Spiš (Slovakia) (1974.06.08 – 1992.06.04) Auxiliary Bishop of Spiš (Slovakia) (1992.06.04 – 2015.10.15) Titular Bishop of Castellum Titulianum (1992.06.04 – ...) |
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Bishop Pietro India | Born: | 1766.11.23 | | Ordained Priest: | 1790.12.18 | | Died: | 1837? († 71) |
| Titular Bishop of Myrina (1836.02.01 – 1837?) |
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Bishop Giovanni Francisco Ingenuo | Born: | 1679.07.07 (Italy) | | Ordained Priest: | 1735.06.04 | | Consecrated Bishop: | 1741.11.12 | | Died: | 1744 († 65) |
| Titular Bishop of Dibon (1741.09.18 – 1744) |
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Archbishop Raimondo Ingheo | Born: | 1821.03.13 | | Ordained Priest: | 1848.04.08 | | Consecrated Bishop: | 1884.12.08 | | Died: | 1911.07.08 († 90) |
| Bishop of Iglesias (Italy) (1884.11.10 – 1907.12.16) Titular Archbishop of Anazarbus (1907.12.16 – 1911.07.08) |
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 Bishop Alberto Iniesta Jiménez
| Born: | 1923.01.04 (Spain) | | Ordained Priest: | 1958.07.13 | | Consecrated Bishop: | 1972.10.22 | | Died: | 2016.01.03 († 92) |
| Auxiliary Bishop of Madrid (Spain) (1972.09.05 – 1998.04.05) Titular Bishop of Tubernuca (1972.09.05 – 2016.01.03) |
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Archbishop Dominicus Invitti | Born: | 1667.08.11 (Italy) | | Ordained Priest: | 1691.12.23 | | Consecrated Bishop: | 1725.01.07 |
| Titular Bishop of Gratianopolis (1724.11.29 – 1725.09.05) Titular Archbishop of Sardes (1725.09.05 – ?) |
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Bishop Honuphrius Ippoliti, O.E.S.A. |
 Bishop Laszlo Anthony Iranyi, Sch. P.
| Born: | 1923.04.09 (Hungary) | | Ordained Priest: | 1948.03.13 | | Consecrated Bishop: | 1983.07.27 | | Died: | 1987.03.06 († 63) |
| Titular Bishop of Castellum medianum (1983.05.20 – 1987.03.06) |
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 Bishop Anthony John Ireland (67)
Titular Bishop of Carinola
Auxiliary Bishop of Melbourne (Australia)
Confirm, strengthen, support | Born: | 1957.04.28 (Melbourne, Victoria, Australia) | | Ordained Priest: | 1987.09.19 | | Consecrated Bishop: | 2021.07.31 |
| Priest of Melbourne (Australia) (1987.09.19 – 2021.05.14) Prelate of Honour of His Holiness (2009.04.30 – 2021.05.14) Titular Bishop of Carinola (2021.05.14 – ...) Auxiliary Bishop of Melbourne (Australia) (2021.05.14 – ...) |
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 Bishop Josu Iriondo Zabaleta (85)
Titular Bishop of Alton
Auxiliary Bishop emeritus of New York (USA)
Dominum et vivificantem | Born: | 1938.12.19 (Legazpi, Spain) | | Ordained Priest: | 1962.12.23 | | Consecrated Bishop: | 2001.12.12 |
| Priest of New York (USA) (1962.12.23 – 2001.10.30) Auxiliary Bishop of New York (USA) (2001.10.30 – 2014.02.01) Titular Bishop of Alton (2001.10.30 – ...) |
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Bishop Francis Xavier Irwin To live in joyful hope | Born: | 1934.01.09 (Medford, MA, USA) | | Ordained Priest: | 1960.02.02 | | Consecrated Bishop: | 1996.09.17 | | Died: | 2019.10.30 (Dennis, MA, USA † 85) |
| Auxiliary Bishop of Boston (USA) (1996.07.24 – 2009.10.20) Titular Bishop of Ubaza (1996.07.24 – 2019.10.30) |
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Bishop Isaac (Armenian Rite) | Consecrated Bishop: | 1740 | | Died: | 1768 |
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 Bishop Edouard Isango Nkoyo (51)
Titular Bishop of Utimmira
Auxiliary Bishop of Kinshasa (Congo-Kinshasa)
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 Archbishop Ricardo Isaza y Goyechea
| Born: | 1847.02.07 (Uruguay) | | Ordained Priest: | 1872.12.21 | | Consecrated Bishop: | 1891.05.31 | | Died: | 1929.06.28 († 82) |
| Titular Bishop of Anemurium (1891.02.15 – 1918.07.23) Auxiliary Bishop of Montevideo (Uruguay) (1891.02.15 – 1929.06.28) Titular Archbishop of Stauropolis (1918.07.23 – 1929.06.28) |
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 Bishop Jean Isembert, O.P.
| Consecrated Bishop: | 1450.05.14 | | Died: | 1465.09.08 |
| Titular Bishop of Christopolis (1450.05.11 – 1465.09.08) Auxiliary Bishop of Metz (France) (1450.05.11 – 1465.09.08) |
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Bishop Johann Isenberg, O.F.M. | Consecrated Bishop: | 1467.04.12 | | Died: | 1484.09.06 |
| Titular Bishop of Thermopylæ (1466.11.12 – 1484.09.06) Auxiliary Bishop of Speyer (Germany) (1466.11.12 – 1484.09.06) |
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  Archbishop Ihor Isichenko (Ігор Ісіченко) (68) (Ukrainian Rite)
Archbishop ad personam
| Born: | 1956.01.28 (Bashkiria, Russia) | | Ordained Priest: | 1993.01.04 | | Consecrated Bishop: | 1993.07.12 (no papal mandate) |
| Archbishop ad personam (2003 – ...) Ukrainian Orthodox Archbishop of Kharkiv–Poltava 1993-2020. Converted to Catholic 2020. |
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Archbishop Nilo Isworoff (Bulgarian Rite) | Born: | 1823.11.21 (Bulgaria) | | Consecrated Bishop: | 1872.06.10 (no papal mandate) | | Died: | 1905.03.13 († 81) |
| Vicar Apostolic of Constantinople of the Bulgarians (Turkiye) (1880 – 1895.07) Archbishop ad personam (1883.04.10 – 1905.03.13) Bulgarian Orthodox bishop of Smolens 1872.06.10. Catholic 1874.04.11. Bulgarian Orthodox 1895.07. |
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Bishop Daniel Ivancho (Ruthenian Rite) |
Bishop Andrzej Iwanecki (64) Titular Bishop of Arcavica
Auxiliary Bishop of Gliwice (Poland)
Jezus jest Panem | Born: | 1960.11.03 (Siemianowice Śląskie, Poland) | | Ordained Priest: | 1986.03.27 | | Consecrated Bishop: | 2018.01.07 |
| Priest of Katowice (Poland) (1986.03.27 – 1992.03.25) Priest of Gliwice (Poland) (1992.03.25 – 2017.11.18) Titular Bishop of Arcavica (2017.11.18 – ...) Auxiliary Bishop of Gliwice (Poland) (2017.11.18 – ...) |
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 Bishop Jerzy Iwaszkiewicz
| Born: | 1819.04.19 | | Ordained Priest: | 1845.04.14 | | Consecrated Bishop: | 1872.06.30 | | Died: | 1876.01.09 († 56) |
| Titular Bishop of Anthedon (1872.05.06 – 1876.01.09) Auxiliary Bishop of Mohilev (Belarus) (1872.05.06 – 1876.01.09) |
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 Bishop Wojciech Izdebski
| Born: | 1616.04.19 | | Ordained Priest: | 1648.04.19 | | Consecrated Bishop: | 1697.10.15 | | Died: | 1702.11.03 († 86) |
| Titular Bishop of Raulia (1696.06.18 – 1702.11.03) Auxiliary Bishop of Vilnius (Lithuania) (1696.06.18 – 1702.11.03) |
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Bishop Michael John Izen (57) Titular Bishop of Newport
Auxiliary Bishop of Saint Paul and Minneapolis (USA)
Emmanuel God with us |
