List of Bishops of Sion
The list of known bishops of Octodurus ( from 381 ), Sion ( from 585 ) and the Prince Bishops ( 999-1798 ).
Bishops of Sion
Bishops with accurate dating opportunity
- Theodore ( 381-393 )
- Salvius ( 450 )
- Prothais ( 490 )
- Constantius ( 515-517 )
- Rufus ( 541-549 )
- Agricola ( 565 )
- Héliodore (585)
- Rusticus ( 602/603 )
- Leudemond ( 613-614 )
- Dracoald (after 614)
- Prothias ( 647/653 )
- Amé ( 673/691 )
- Willicaire ( 762-765 )
- Altheus ( 786/788-796/798 )
- Adalongus (1st of the 9th century )
- Heyminus ( 825-857 )
- Walterus ( 877-899/910 )
- Asmundus (932)
- Vulfinus (died February 11? )
- Manfredus ( 940 )
- Vultcherius ( 10th century )
- Amizo ( 983-984/985 )
- Hugues ( 993/994-1018/1020 )
- Eberhardus (11th century)
- Aymon (1034-1053)
- Ermenfroi ( 1054/1055-1087/1092 )
- Gausbertus (before 1092 )
- Vilencus (1107-1116)
- Boson (1135-1138)
- Guérin (1138-1150)
- Louis ( 1150 to 1162 )
- Amédée de La Tour (1162-1168)
- Guillaume de Blonay (1176-1177)
- Conon ( 1179-1181/1184 )
- Guillaume (around 1184-1196 )
- Nantelmus Ecublens (1196-1203)
- William of Saillon (1203-1205)
- Landri de Mont (1206-1236)
- Boso II de Granges (1237-1243)
- Henry I of Raron (1243-1271)
- Rudolf Valpellenentze (1271-1273)
- Henry II of Raron (1273-1274)
- Pierre d' Oron (1274-1287)
- Boniface de Challants (1289-1308)
- Aymon de Châtillon (1308-1323)
- Aymo of turn (1323-1338)
- Philippe de Chambarlhac (1338-1342)
- Guichard Tavel (1342-1375)
- Edouard de Savoie - Achaie (1375-1386)
Avignonesische obedience
- Robert Chambrier ( 1387 )
- Humbert de Billens (1388-1398)
- Aymon Séchal (1398-1404)
- Antoine de Challants (1404-1417)
Roman obedience
- Girard Tavel (1387-1388)
- Henri de Blanchis de Vellate (1389-1391)
- Wilhelm ( I.) of Raron ( 1391-1402 )
- William ( II ) of Raron ( 1402-1418 )