Saint Adelin of Séez (also called, Hadelin, Adelheim, Adelhelm, or Adalhelmus). He was a Benedictine monk and later on an abbot at the abbey of Anisole. He was the bishop of Séez for twenty-six years from.
He is noted in Catholic Encyclopedia for being the author of a work on the life and the miracles of Saint Opportuna (Vita et miracula Sanctae Opportunae).
Died c. 910
Venerated in Roman Catholic Church
Feast 10 November
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