Ambrose Traversari
Italian monk and theologian (1386–1439)
Feast: 20 November (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
Ambrose Traversari was born at Portico near Florence on 16 September 1386, entered the Camaldolese at fourteen and became their General in 1431. A great theologian and writer, he knew Greek as well as Latin.
Sent by Eugene IV to the Council of Basel, he strongly defended the primacy of the Roman pontiff and begged the council not to tear Christ's seamless robe. At the Councils of Ferrara and Florence he worked for the union of the Greek and Latin Churches. He died on 21 October 1439.
The miracles
There was never a formal cause.
Why that counted as sanctity
A monk-scholar who laboured for the unity of the Church of East and West.
The cause
The cause continues. No postulation address is published here yet. Favours received through this person’s intercession, and offers of help, are best sent to the religious order or congregation they belonged to, or to the diocese where the cause was opened; either will pass them to the postulation.
- Catholic Encyclopedia (1913), via New Advent - Ambrose of Camaldoli
- Wikidata Q458842 — dates, feast day and identifiers (CC0)
- English Wikipedia — Ambrose Traversari (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.