Rev. Alban Butler (171173). Volume IX: September. The Lives of the Saints. 1866.
St. Osmanna of Ireland, Virgin
SHE was descended from an illustrious family in Ireland, and retired to France to live in a state of virginity. She fixed her residence in Lesser-Brittany, served God there in solitude with great fervour, and died near St. Brieuc, about the seventh age. For several centuries her relics were kept in a shrine in a chapel dedicated to God under her patronage in the abbatial church of St. Denys near Paris; but part of them was dispersed by the Calvinists in 1567. She is mentioned in several Martyrologies under this day. See her two lives, one by Capgrave, the other shorter and more exact, published by Suysken, Act. SS. tom. 3. Sept. 419.