A mortal woman turned mermaid. I was the daughter of Eochaid the Firbolg King and Etain, the captured bride of Midhir- of the the Tuatha de Danann. When a sacred well overflowed, I was swept away with my pet dog. I found shelter in a small cave by the Sea where I prayed to the Goddess Dana, Mother of All, to be transformed into a salmon so I could be free to swim with the fish near my shelter.

Goddess Dana answered my prayers to be transformed; only not completely- I was to remain a human from the waist up and a have the tail of a fish from the waist down. My pet dog was also transformed into an Otter. For over 300 years I lived among the waves until Beoc, a clergy man sailing for Rome heard me singing. When he stopped the ship, I rose up to ask him to deliver a message to the Bishop of Bangor. I wanted to meet with the holy men there. I was drawn from the Sea and taken to Beoc’s church, the Teo-da-Beoc. I chose my moment of ascension (death) and St. Comgall baptized me by the name of Murgen (Sea-Born). I was accounted one of the Holy Virgins, and signs and wonders (miracles) were done through my means in the Teo-da-Beoc. Many carvings and paintings of mermaids exist in the church to this day.