| Bishops |
 Bishop Théodore Wichwael, O.E.S.A.
| Titular Bishop of Cyrene (1504.08.02 – 1519.03.03) Auxiliary Bishop of Köln (Germany) (1504.08.02 – 1519.03.03) |
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 Bishop Łukasz Krzysztof Wielewiejski
| Born: | 1660.10 (Poland) | | Consecrated Bishop: | 1726.09.30 | | Died: | 1743 († 83) |
| Titular Bishop of Cambysopolis (1726.09.11 – 1743) |
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Bishop Maciej Wielicki, O.P. |
  Bishop Kazimierz Wielikosielec (Казiмiр Велікаселец), O.P. (79)
Titular Bishop of Blanda
Auxiliary Bishop of Pinsk (Belarus)
Fiat voluntas tua | Born: | 1945.05.05 (Starovola, Belarus) | | Ordained Priest: | 1984.06.03 | | Consecrated Bishop: | 1999.06.24 |
| Titular Bishop of Blanda (1999.05.06 – ...) Auxiliary Bishop of Pinsk (Belarus) (1999.05.06 – ...) Apostolic Administrator of Minsk–Mohilev (Belarus) (2021.01.03 – 2021.09.14) |
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Bishop Hieronim Wielogłowski | Born: | 1703.08 (Poland) | | Ordained Priest: | 1727 | | Consecrated Bishop: | 1761.06.28 | | Died: | 1767.01 († 63) |
| Titular Bishop of Benda (1760.09.22 – 1767.01) Coadjutor Bishop of Przemyśl (Poland) (1760.09.22 – 1767.01) |
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Archbishop Heinrich Wienken Vitam impendere vero | Born: | 1883.02.14 (Germany) | | Ordained Priest: | 1909.06.06 | | Consecrated Bishop: | 1937.04.11 | | Died: | 1961.01.21 († 77) |
| Titular Bishop of Arethusa (1937.02.22 – 1951.03.09) Coadjutor Bishop of Meißen (Germany) (1937.02.22 – 1951.03.09) Bishop of Meißen (Germany) (1951.03.09 – 1957.08.19) Titular Archbishop of Mocissus (1957.08.19 – 1961.01.21) |
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Bishop Hieronim Wierzbowski | Consecrated Bishop: | 1682.04.12 | | Died: | 1712.05 |
| Titular Bishop of Phessa (1681.09.22 – 1712.05) Auxiliary Bishop of Poznań (Poland) (1681.09.22 – 1712.05) |
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Bishop Stefan Wierzbowski | Titular Bishop of Dardanus (1710.07.21 – 1713) Auxiliary Bishop of Warmia (Poland) (1710.07.21 – 1713) |
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Bishop Martin Wiesend In verbo tuo | Born: | 1910.04.28 (Germany) | | Ordained Priest: | 1937.01.31 | | Consecrated Bishop: | 1967.03.27 | | Died: | 2003.03.07 († 92) |
| Auxiliary Bishop of Bamberg (Germany) (1967.01.19 – 1985.08.31) Titular Bishop of Migirpa (1967.01.19 – 2003.03.07) |
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Bishop Andrzej Wilczyński |
Bishop Tomas Wilczynski | Born: | 1903.09.18 (Poland) | | Ordained Priest: | 1926.08.01 | | Consecrated Bishop: | 1952.06.29 | | Died: | 1965.08.05 († 61) |
| Auxiliary Bishop of Lublin (Poland) (1952.06.12 – 1957) Titular Bishop of Polybotus (1952.06.12 – 1965.08.05) |
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Bishop Johann Wilde | Consecrated Bishop: | 1495.03.12 |
| Titular Bishop of Cembalo (1495? – ?) Auxiliary Bishop of Kamień (Poland) (1495? – ?) |
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Bishop Valerius Wilezogerzosi |
 Bishop Cyprian Wiliński, O.P.
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  Bishop Gerald Eugene Wilkerson (84)
Titular Bishop of Vincennes
Auxiliary Bishop emeritus of Los Angeles (USA)
Walk in Integrity of Heart | Born: | 1939.10.21 (Des Moines, IA, USA) | | Ordained Priest: | 1965.01.05 | | Consecrated Bishop: | 1998.01.21 |
| Priest of Los Angeles (USA) (1965.01.05 – 1997.11.05) Auxiliary Bishop of Los Angeles (USA) (1997.11.05 – 2015.07.21) Titular Bishop of Vincennes (1997.11.05 – ...) Apostolic Administrator of Monterey (USA) (2018.07.20 – 2018.11.27) |
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Bishop Baltazar Wilksycki | Born: | 1658.01.01 | | Ordained Priest: | 1690.04.29 | | Consecrated Bishop: | 1728.10.10 | | Died: | 1729 († 71) |
| Titular Bishop of Eucarpia (1728.04.12 – 1729) Auxiliary Bishop of Poznań (Poland) (1728.04.12 – 1729) |
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Bishop Jan Jerzy Wilkxycki | Born: | 1763.09.09 | | Ordained Priest: | 1787.09.22 | | Consecrated Bishop: | 1818.10.04 | | Died: | 1831.05.15 († 67) |
| Titular Bishop of Flavias (1817.07.28 – 1831.05.15) Auxiliary Bishop of Chełmno (Poland) (1817.07.28 – 1831.05.15) |
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 Bishop Neil E. Willard
To proclaim Jesus Christ | Born: | 1937.05.09 (Montréal, QC, Canada) | | Ordained Priest: | 1961.05.27 | | Consecrated Bishop: | 1995.08.15 | | Died: | 1998.03.25 († 60) |
| Titular Bishop of Tisedi (1995.06.27 – 1998.03.25) Auxiliary Bishop of Montréal (Canada) (1995.06.27 – 1998.03.25) |
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 Bishop Willem
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 Bishop Desmond A. Williams
| Born: | 1930.04.19 (Ireland) | | Ordained Priest: | 1955.06.04 | | Consecrated Bishop: | 1985.04.21 | | Died: | 2006.02.24 († 75) |
| Auxiliary Bishop of Dublin (Ireland) (1985.03.14 – 1993.12.18) Titular Bishop of Summa (1985.03.14 – 2006.02.24) |
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Bishop Joseph Andrew Williams (50) Titular Bishop of Idassa
Auxiliary Bishop of Saint Paul and Minneapolis (USA)
Misericordiam volo / I desire mercy |
 Bishop Thomas Anthony Williams (76)
Titular Bishop of Mayo
Auxiliary Bishop emeritus of Liverpool (England)
| Born: | 1948.02.10 (Vauxhall, Liverpool, England) | | Ordained Priest: | 1972.05.27 | | Consecrated Bishop: | 2003.05.27 |
| Priest of Liverpool (England) (1972.05.27 – 2003.04.15) Auxiliary Bishop of Liverpool (England) (2003.04.15 – 2023.03.25) Titular Bishop of Mayo (2003.04.15 – ...) Apostolic Administrator of Liverpool (England) (2013.02.27 – 2014.03.21) |
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Bishop Richard Nelson Williamson, S.S.P.X. ▼ (84) Fidelis inveniatur | Born: | 1940.03.08 (Finchley, London, England) | | Ordained Priest: | 1976.06.29 | | Consecrated Bishop: | 1988.06.30 (no papal mandate) |
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Bishop Teofil Józef Wilski Paternitati Servire Dei | Born: | 1935.10.16 (Skubarczewo, Poland) | | Ordained Priest: | 1960.06.11 | | Consecrated Bishop: | 1995.05.08 | | Died: | 2022.03.26 (Ostrów, Poland † 86) |
| Auxiliary Bishop of Kalisz (Poland) (1995.04.08 – 2011.10.31) Titular Bishop of Castellum in Mauretania (1995.04.08 – 2022.03.26) |
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 Bishop József Winkler
| Born: | 1905.10.19 (Hungary) | | Ordained Priest: | 1930.10.26 | | Consecrated Bishop: | 1964.10.28 | | Died: | 1981.01.30 († 75) |
| Titular Bishop of Dadima (1959.09.15 – 1981.01.30) Auxiliary Bishop of Szombathely (Hungary) (1959.09.15 – 1981.01.30) |
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Bishop William Joseph Winter (93) Titular Bishop of Uthina
Auxiliary Bishop emeritus of Pittsburgh (USA)
To do your will | Born: | 1930.05.20 (Pittsburgh, PA, USA) | | Ordained Priest: | 1955.12.17 | | Consecrated Bishop: | 1989.02.13 |
| Priest of Pittsburgh (USA) (1955.12.17 – 1988.12.21) Auxiliary Bishop of Pittsburgh (USA) (1988.12.21 – 2005.05.20) Titular Bishop of Uthina (1988.12.21 – ...) |
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Bishop Josef Winterl, S.J. | Born: | 1728.02.02 | | Died: | 1790.08.30 († 62) |
| Auxiliary Bishop of Győr (Hungary) (1773 – 1790.08.30) |
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Bishop George Otto Wirz Adveniat regnum tuum | Born: | 1929.01.17 (Monroe, WI, USA) | | Ordained Priest: | 1952.05.31 | | Consecrated Bishop: | 1978.03.09 | | Died: | 2010.11.23 († 81) |
| Auxiliary Bishop of Madison (USA) (1977.12.10 – 2004.02.10) Titular Bishop of Municipa (1977.12.10 – 2010.11.23) |
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 Bishop Carlo Wisnar
| Born: | 1852.10.25 (Czechia) | | Died: | 1926.04.18 († 73) |
| Titular Bishop of Callipolis (1904.11.14 – 1926.04.18) Auxiliary Bishop of Olomouc (Czechia) (1904.11.14 – 1926.04.18) |
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Bishop Michał Witosławski | Born: | 1702.09.23 | | Ordained Priest: | 1726.09.22 | | Consecrated Bishop: | 1768.04.24 | | Died: | 1769.03.22 († 66) |
| Titular Bishop of Corone (1768.01.25 – 1769.03.22) Auxiliary Bishop of Przemyśl (Poland) (1768.01.25 – 1769.03.22) |
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Bishop Georg Michael Wittmann | Born: | 1760.01.23 | | Ordained Priest: | 1782.12.21 | | Consecrated Bishop: | 1829.06.28 | | Died: | 1833.03.08 († 73) |
| Titular Bishop of Comanæ (1829.05.21 – 1831.03.14) Auxiliary Bishop of Regensburg (Germany) (1829.05.21 – 1833.03.08) Titular Bishop of Miletopolis (1831.03.14 – 1833.03.08) |
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Bishop Adrian Wlodarski | Born: | 1807.03.02 | | Ordained Priest: | 1830.03.25 | | Consecrated Bishop: | 1861.06.02 | | Died: | 1875.05.30 († 68) |
| Titular Bishop of Iboræ (1861.03.18 – 1875.05.30) Auxiliary Bishop of Wrocław (Poland) (1861.03.18 – 1875.05.30) |
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