Louis Brisson
French Roman Catholic Priest (1817–1908)
Feast: 12 October (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
Louis Brisson was born at Plancy, near Troyes, on 23 June 1817 and ordained for the diocese of Troyes in 1840. He taught religion and science at the Visitation school and was an ingenious inventor, building an astronomical clock of great accuracy.
Urged by a Visitation nun after decades of discussion, he founded the Oblates of St Francis de Sales, the priests St Francis de Sales had wished to found, and the Oblate Sisters. He died on 2 February 1908.
The miracles
The Dicastery's biography does not describe the miracles approved in the cause.
Why that counted as sanctity
A priest-scientist who founded an order in the spirit of St Francis de Sales.
The cause
Louis Brisson has been beatified; the cause continues. Favours received, and offers of help, go to the postulation, the office that carries the cause forward: Oblate Sisters of St Francis de Sales: the cause of Louis Brisson.
Connected on this site
- Francis de Sales Saint“Francis de Sales and the Oblates of St.” — Wikipedia
- Leonie Aviat Saint“Léonie Aviat (16 September 1844 – 10 January 1914), her religious name Françoise de Sales, was a Roman Catholic professed religious and the co-founder along with Louis Brisson of the Oblate Sisters of St.” — Wikipedia
- Dicastery for the Causes of Saints - biography: Louis Brisson
- Wikidata Q321712 — dates, feast day and identifiers (CC0)
- English Wikipedia — Louis Brisson (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.