William Arnaud
Dominican inquisitor and martyr at Avignonet
Feast: 29 May (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in the work of opposing the heresy of the Cathars, were arrested by a trick on account of their faith in Christ and their obedience to the Church of Rome, and died run through by the sword on the night of the Lord's Ascension, while they sang the Te Deum with one voice.
The miracles
The Roman Martyrology does not describe the miracles approved in the cause.
Why that counted as sanctity
The Roman Martyrology remembers him on 29 May as the leader of eleven men killed by the sword at Avignonet for their faith in Christ and their obedience to the Church of Rome.
Connected on this site
- Adhemar Blessed“At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in the work of opposing the heresy of the Cathars, were arrested by a trick on account of their faith in Christ and their obedience to the Church of Rome, and died run through by the sword on the night of the Lord's…” — this site's research
- Bernard of Avignonet Blessed“At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in the work of opposing the heresy of the Cathars, were arrested by a trick on account of their faith in Christ and their obedience to the Church of Rome, and died run through by the sword on the night of the Lord's…” — this site's research
- Bernard of Roquefort Blessed“At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in the work of opposing the heresy of the Cathars, were arrested by a trick on account of their faith in Christ and their obedience to the Church of Rome, and died run through by the sword on the night of the Lord's…” — this site's research
- Fontanier Blessed“At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in the work of opposing the heresy of the Cathars, were arrested by a trick on account of their faith in Christ and their obedience to the Church of Rome, and died run through by the sword on the night of the Lord's…” — this site's research
- Garcia of Aure Blessed“At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in the work of opposing the heresy of the Cathars, were arrested by a trick on account of their faith in Christ and their obedience to the Church of Rome, and died run through by the sword on the night of the Lord's…” — this site's research
- Peter d'Arnaud Blessed“At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in the work of opposing the heresy of the Cathars, were arrested by a trick on account of their faith in Christ and their obedience to the Church of Rome, and died run through by the sword on the night of the Lord's…” — this site's research
- Raymond Carbonier Blessed“At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in the work of opposing the heresy of the Cathars, were arrested by a trick on account of their faith in Christ and their obedience to the Church of Rome, and died run through by the sword on the night of the Lord's…” — this site's research
- Raymond of Cortisan Blessed“At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in the work of opposing the heresy of the Cathars, were arrested by a trick on account of their faith in Christ and their obedience to the Church of Rome, and died run through by the sword on the night of the Lord's…” — this site's research
- Stefan z Narbony Blessed“At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in their commitment to oppose the heresy of the Cathars, were arrested by deceit because of their faith in Christ and their obedience to the Church of Rome, and died pierced by the sword on the night of the Ascension of the…” — this site's research
- Stephen of Saint-Thierry Blessed“At Avignonet near Toulouse in France, Blessed William Arnaud and ten companions, who, united in the work of opposing the heresy of the Cathars, were arrested by a trick on account of their faith in Christ and their obedience to the Church of Rome, and died run through by the sword on the night of the Lord's…” — this site's research
- Roman Martyrology, 29 May (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q15818579 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.