Dionysius Exiguus
Byzantine saint
Feast: 1 September (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
Dionysius, who called himself 'the Little' out of humility, was a Scythian by birth who, his friend Cassiodorus says, was a true Roman and thorough Catholic, learned in Greek and Latin and in Scripture.
He governed a monastery in Rome as abbot, translated many Greek works into Latin, and laid the foundations of canon law in the West. He died before 544.
The miracles
The Catholic Encyclopedia does not describe how he came to be honoured as a saint.
Why that counted as sanctity
A humble monk and scholar who served the whole Church with his learning.
Connected on this site
- John I Saint“Pope John I played a pivotal role in standardizing how the Western Church calculated the date of Easter, with the help of the monk Dionysius Exiguus, in 525.” — Wikipedia
- Catholic Encyclopedia (1913), via New Advent - Dionysius Exiguus
- Wikidata Q274091 — dates, feast day and identifiers (CC0)
- English Wikipedia — Dionysius Exiguus (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.