Fled an arranged marriage to become a nun. Spiritual student of Saint Cognat at Ernaide. Founded Clonbroney (Cluain-Bronach) Abbey in County Longford, a house that refused large donations for fear of losing the simplicity of their lives. Her cultus was promoted by Saint Virgilius of Salzburg. Her name is in both the litany and the canon of the Stowe missal.
- 739 of natural causes
- “Saint Samthann of Clonbroney“. CatholicSaints.Info. 4 February 2016. Web. 25 August 2016. <>