Blessed Marie-Catherine de Saint-Augustin

Blessed Marie-Catherine de Saint-AugustinAlso known as

  • Catherine Symon of Longprey
  • Marie-Catherine Simon de Longpré
  • Marie-Catherine Symon de Longprey
  • Mary Catherine of Saint Augustine



Raised primarily by her grandparents, Marie-Catherine was a pious girl noted for her concern for the poor and sick. She became a Augustinian canoness regular sister in the Hospitaller Sisters of the Mercy on 24 October 1644, taking the name Marie-Catherine de Saint-Augustin and serving in the Hôtel-Dieu, the hospital that the Order operated in Bayeux, France.

In 1648 she volunteered to help establish the hospital, Hôtel-Dieu de Québec, to provide medical services to the region around Quebec in New France. While travelling, Sister Marie-Catherine became severely ill; she attributed her cure to the intercession of the Blessed Virgin Mary. At the new hospital, while serving as the organization’s treasurer, she was known for caring for the physical and spiritual well-being of her patients. She learned the languages of the area First Peoples in order to better care for them. Novice mistress to the new Augustinians brought to the order by the work of the sisters. She spent her spare time in prayer and penance in support of the hospital mission. For her endless work and devotion, Mother Catherine is honoured as one of the six founders of the Catholic Church in Canada.



  • 8 May 1668 in the Hôtel-Dieu de Québec, Québec City, New France (modern Canada) of natural causes
  • relics enshrined at the Centre Catherine-de-Saint-Augustin next to the Hôtel-Dieu de Québec



MLA Citation

  • “Blessed Marie-Catherine de Saint-Augustin“. CatholicSaints.Info. 8 May 2021. Web. 13 June 2021. <>