In a time before time, when mother's firstborn ran free, and were untroubled, mother's firstborn were tempted and lost their way to the Fortunate Isles. Soon all of the first ones fell to dust. Then arose the Cymry.
Proud and mighty, they built their wrath in a green wooded glen. First among them was Båothon Mac Fionn, who was made cåthaig over all. Båothon was mighty, tall in stature, fair of face, and fearsom in battle. He persuaded the Morrighan to be his only mate. She bore him 3 daughters and 2 sons. Their daughters were Medb, Eire, and Grainne; each of them were strong and lovely. Their sons Aodhan and Coinneach were weak and sickly.
When the eldest daughter, Eire, the eldest among them reached the time of turning, the Morrighan reminded Båothan of the vow he had made here when they joined.
He says, "What vow?"
The Morrighan says to him., "You vowed that my eldest daughter would rule this tribe."
Answering he says, "Never have I said such words. You would do well to remember your place !"
"I will give you one chance to honor this vow. You forswore on the elements!!!"
"Never! My sons will rule when I am gone!"
Båothan, the foolish one, forgot his mate was no mere mortal but the goddess of war. At his final refusal to honor his sacred vow. The Morrighan turns into a mist gray wolf and tears his throat to shreds as well as those of his sons. She returns to the Cymry in human form to lay upon them a curse for Båothan's foolishness:
So it was said, ever has it been,
Morrigan ui Ceridwen,
Cathaig of the Cymry, Year of the Black Stag