(Blessed) Martyr (March 5) (13th century) A Cistercian Saint, born of a noble family in the South of France, and the friend of Saint Dominic. He was admirable in his zeal for the conversion of the Albigensian heretics. They murdered him A.D. 1209.
- Monks of Ramsgate. “Peter of Castelnau”. , 1921. CatholicSaints.Info. 17 October 2016. Web. 21 January 2017. <>