{{Short description|none}} List of bishops of the Roman Catholic Diocese of Sion:
==Late Antiquity== ;Bishops of Agaunum (Octodurum) {| class=wikitable !width=110px|From !width=110px|To !Bishop !Notes |- |fl. 380s | |Theodore | |- |fl. 440 | |Salvius/Silvius | |- |fl. 490 | |Prothais | |- | | 516(?) |Theodore II(?) | |- | 517 | | Constantinus | |- | 549 | | Rufus | |- | 565 | | Agricola | |}
==Early Middle Ages==
{| class=wikitable !width=110px|From !width=110px|To !Bishop !Notes |- | 585 | | Heliodorus | |- | 613 | 614 | Leudemond | |- | 647 | 653 | Prothais | |- | 673 | 690 | Saint Aimé | |- | 762 | 765 | Willicar | |- | 786/8 | 796/8 | Altheus | |- | fl. 805 | | Theodore III(?) | According to 12th-century legend, secular power was granted to the bishops of Sion by Charlemagne |- |fl. 824 | |Adalongus | |- |825 |857 |Heyminus | |- |877 |899/900 |Waltherius | |- |932 | |Asmundus | |- |fl. 940 | |Manfredus (?) | |- |983 |984/5 |Amizo | |- |}
==Prince-bishops of Sion== {{anchor|Prince-bishops}}
===Middle Ages=== {| class=wikitable !width=110px|From !width=110px|To !Bishop !Notes |- |993/4 |1018/20 |Hugues | First prince-bishop, granted secular power by Rudolph III of Burgundy in c. 999 |- |1034 |1053/4 |Aymon of Savoy |Succeeded his brother Buchardus as Abbot of St Maurice in 1049 or 1050 |- |1054 |1087-1090 |Ermenfroi | |- |fl. 1092 | |Gausbertus | |- |1107 |1116 |Vilencus | |- |1135 |1138 |Boson | |- |1138 |1150 |Saint Guérin | |- |1150 |1162(?) |Louis | |- |1162 |1168 (?) |Amédée of La Tour | |- |1176 |1177 |Guillaume of Blonay | |- |1179 |1181 or 1184 |Conon | |- |1184(?) |1196 |Guillaume of Candie | |- |1196 |1203 |Nantelme of Écublens | |- |1203 |1205 |Guillaume of Saillon | |- |1206 |1237 |Landry of Mont | |- |1237 |1243 |Boson II of Granges | |- |1243 |1271 |Henri of Rarogne | |- |1271 |1273 |Rodolphe of Valpelline | |- |1273 |1287 |Pierre of Oron | |- |February 1287 |15 December 1289 | |''vacant'' |- |1289 |1308 |Boniface of Challant | |- |1308 |1323 |Aymon of Châtillon | |- |1323 |1338 |Aymon of La Tour | |- |1338 |1342 |Philippe of Chamberlhac | |- |1342 |1375 |Guichard Tavelli |Murdered by defenestration |- |1375 |1386 |Édouard of Savoy | |- |}
===Western Schism=== ;loyal to Avignon {| class=wikitable !width=110px|From !width=110px|To !Bishop !Notes |- |1386 |1386 |Guillaume of La Baume-Saint-Amourb | |- |1387 |1387 |Robert Chambrier | |- |1388 |1392 |Humbert de Billens | |- |1398 |1404 |Aymon Séchala | |- |1404 |1417 |Jacques (Antoine?) de Challant | |- |}
;loyal to Rome {| class=wikitable !width=110px|From !width=110px|To !Bishop !Notes
|- |1387 |1388 |Gerardus (Girard Tavel?) | |- |1392 |1393 |Henri de Blanchis | |- |1394 |1402 |Guillaume IV ("the Good") of Rarogne | |- |1402 |1418 |Guillaume V of Rarogne |see Raron affair |- |}
===Renaissance to early modern=== [[File:Wappen 1594 BSB cod icon 326 016 crop.jpg|thumb|Coat of arms of Hildebrand of Riedmatten (1594). The prince-bishops used their family coats of arms; the ''Riedmatten'' coat of arms was in use for much of the early modern period (1529–1545, 1565–1613, 1640–1701) and is presented as coat of arms of the bishopric in e.g. Siebmacher (1605).]] {| class=wikitable !width=110px|From !width=110px|To !Bishop !Notes |- |1418 |1437 |André dei Benzi of Gualdo |Archbishop of Kolocza (in Hungary); administrator from 1418, bishop from 1431. Valais witch trials. |- |1437 |1451 |Guillaume VI of Rarogne | |- |1451 |1457 |Henri Asperlin | |- |1457 |1482 |Walter Supersaxo |Burgundian War |- |1482 |1496 |Jost of Silenen (d. 1498) |Member of Lucerne nobility (uncle of Kaspar von Silenen) and diplomat for the Swiss Confederacy, bishop of Grenoble 1477–1467, Jost ruled as a "Renaissance prince" but after failed campaigns against Milan was forced to abdicate and went into exile in Lyon, retaining only the title of titular bishop of Hierapolis. |- |1496 |1499 |Nicolas Schiner | |- |1499 |1522 |Mathieu Schiner |Cardinal; nephew of Nicolas Schiner |- |1522 |1528 |Philippe am Hengart (not recognised by the Pope)<br> Philippe de Platea (not recognised locally) | |- |1529 |1545 |Adrien I of Riedmatten |Valais becomes an eternal associate of the Old Swiss Confederacy in 1529. |- |1548 |1565 |Jean Jordan | |- |1565 |1604 |Hildebrand I of Riedmatten |Banned protestantism in 1604<ref>{{cite encyclopedia|encyclopedia=Historical Dictionary of Switzerland|author=Zenhäusern, Gregor|title=Sion (diocèse)|language=fr|access-date=12 February 2021|translator=Laurent Auberson|url=https://hls-dhs-dss.ch/fr/articles/011401/2012-12-19/=}}</ref> |- |1604 |1613 |Adrien II of Riedmatten | |- |1613 |1638 |Hildebrand II Jost |In 1628, the Valais becomes a republic, but remains under the nominal rule of the prince-bishops. |- |1638 |1640 |Barthélemy Supersaxo | |- |1640 |1646 |Adrien III of Riedmatten | |- |1646 |1672 |Adrien IV of Riedmatten | |- |1672 |1701 |Adrien V of Riedmatten | |- |1701 |1734 |François-Joseph Supersaxo | |- |1734 |1752 |Jean-Joseph-Arnold Blatter | |- |1752 |1760 |Jean-Hildebrand Roten | |- |1760 |1780 |François-Joseph-Frédéric Ambuel | |- |1780 |1790 |François-Melchior-Joseph Zen-Ruffinen | |- |1790 |1807 |Joseph Anton Blatter |Last prince-bishop, loss of secular power with the French invasion of 1798. |- |}
==Modern history== thumb|Modern coat of arms{{citation needed|date=July 2017}}
{| class=wikitable !width=110px|From !width=110px|To !Bishop !Notes |- |1807 |1817 |Joseph-François-Xavier de Preux | |- |1817 |1829 |Auguste-Sulpice Zen-Ruffinen | |- |1830 |1843 |Maurice-Fabien Roten | |- |1843 |1875 |Pierre-Joseph de Preux | |- |1875 |1901 |Adrien VI Jardinier | |- |1901 |11 July 1918 |Jules-Maurice Abbet |Born 11 September 1845 |- |1919 |19 March 1952 |Victor Bieler |Born 16 March 1881 |- |1952 |1975 |François-Nestor Adam |Born 7 February 1903; died 8 February 1990 |- |1975 |1995 |Henri Schwery |Born 14 June 1932 |- |1995 |2014 |Norbert Brunner |Born 21 June 1942 |- |2014 | |Jean-Marie Lovey |Born 2 August 1950 |- |}
==References== {{Reflist}} *{{HLS|11401|Sion (diocèse)}}
Sion Sion Bishops of Sion list Bishops of Sion