Louis of Toulouse
French Catholic bishop and saint
Feast: 19 August (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
Louis, son of King Charles II of Naples and nephew of St Louis IX, spent seven years from 1288 as a hostage in Aragon, where Franciscan friars educated him. He gave up his rights to the throne.
Named Bishop of Toulouse at the end of 1296, he appeared publicly in the Franciscan habit in 1297. His episcopate was very brief: returning from a visit to his sister, he died of fever at Brignoles on 19 August 1297, aged twenty-three.
The miracles
The Catholic Encyclopedia does not describe the miracles approved in the cause.
Why that counted as sanctity
A prince who gave up a throne to be a poor friar and bishop.
- Catholic Encyclopedia (1913), via New Advent - St. Louis of Toulouse
- Wikidata Q196157 — dates, feast day and identifiers (CC0)
- English Wikipedia — Louis of Toulouse (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.