Ado of Vienne
Archbishop of Vienne
Feast: 16 December (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
Ado was born about 800 in the diocese of Sens and brought up at the Benedictine abbey of Ferrières, where his gifts and his obedience, humility and piety stood out. Though urged towards a worldly career, he took the Benedictine habit.
Sent to teach at Prüm, he was driven out by envious monks, and went on pilgrimage to Rome for five years. He became Archbishop of Vienne and died on 16 December 875.
The miracles
There was never a formal cause: he has been honoured as a saint since before the Church's formal processes began.
Why that counted as sanctity
A learned, humble monk who became a zealous archbishop.
Connected on this site
- Evantius of Vienne Saint“Evantius is mentioned in the list of the bishops of Vienne produced by Archbishop Ado of Vienne (799-875), in his Chronicle.” — Wikipedia
- Florent Saint“Florent or Florentinus is mentioned in the list of bishops of Vienne produced by archbishop Ado of Vienne (799-875) in his Chronicle, according to which however he lived in the previous century during the reigns of the emperors Volusianus (251-253) and Gallienus (253–260) as the 8th bishop of Vienne, and was…” — Wikipedia
- Julien Saint“The 9th-century archbishop and chronicler Ado of Vienne places him as 18th bishop of Vienne, following Saint Avitus, who seems to have died between 518 and 525.” — Wikipedia
- Paschasius of Vienne Saint“In the Chronicles of Archbishop Ado of Vienne (died 875), he writes that it was Paschasius who instigated the "first translation of the [relics of] saints Felician, Exuperius and Severinus", martyrs at Vienne under Marcus Aurelius.” — Wikipedia
- Philip of Vienne Saint“He is mentioned in the catalogus of the bishops of Vienne produced by Archbishop Ado of Vienne (799–875), in his Chronicle.” — Wikipedia
- Catholic Encyclopedia (1913), via New Advent - St. Ado
- Wikidata Q359951 — dates, feast day and identifiers (CC0)
- English Wikipedia — Ado of Vienne (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.