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Méen
Breton saint
SaintPre-congregation
Feast: 21 June (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
540
Died
617
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
Mewan (Latin: Mevennus, Breton: Meven, French: Méen) (fl. 6th century) was a Celtic saint active in Wales, Cornwall and Brittany. Most documentation of his life can be found in the Breton Vita Meveni, perhaps written in 1084 by Ingamar.
Summary from Wikipedia (CC BY-SA 4.0), until this page is written up in full.
The miracles
Limited information available on this saint.
Why that counted as sanctity
Limited information available on this saint.