Modron
In Welsh mythology, Modron ("divine mother") was a daughter of Avalloc, derived from the Gaulish goddess Dea Matrona. She may have been the prototype of Morgan le Fay from Arthurian legend. She was the mother of Mabon, who bears her name as "Mabon ap Modron" ("Mabon, Son of Modron") and who was stolen away from her when he was three days old and later rescued by King Arthur.[1]
In the Welsh Triads, Modron becomes impregnated by Urien and gives birth to Owain and Morvydd.
Often conflated with the Roman Matrona, she is the Tutelary of the Marne in Gaul. In Britain, she appears as a washerwoman, and thus there would seem to be a connection with the Morrigan.
She is one of the most potent of the Celtic archetypal mother Goddess. She is also a fertility and harvest deity often equated with Greece's Demeter or Ireland's Danu.