Person

Pierre de Castelnau

d. 1208 · 12th century · Also known as Peter of Castelnau

Pierre de Castelnau was a Cistercian monk and papal legate sent by Pope Innocent III to combat Catharism in Languedoc. After excommunicating Raymond VI of Toulouse, he was murdered near Saint-Gilles in January 1208 by a man thought to be one of the count's retainers. Innocent blamed Raymond and proclaimed the Albigensian Crusade.

Pierre de Castelnau
Image: Unknown, French · Public domain · Wikimedia Commons

Mentioned in 1 profile

County of ToulouseDecline

See also

Cite this entry
APA
The Epoch Institute. (2026). Pierre de Castelnau. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/pierre-de-castelnau
MLA
“Pierre de Castelnau.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/pierre-de-castelnau. Accessed .
Chicago
The Epoch Institute. “Pierre de Castelnau.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/pierre-de-castelnau.
Harvard
The Epoch Institute (2026) ‘Pierre de Castelnau’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/pierre-de-castelnau (Accessed: ).

Last reviewed October 2026Random entry ↻