In Irish mythology, Caer Ibormeith was a daughter of Ethal and Prince Anubal of Connacht. Every alternate Samhain she would change into a swan, in which form she would remain for a year before becoming human again the following Samhain. She eventually married Aengus, but first he had to pick her out, in swan form, from a group of other swans at Loch Bel Dragon. He turned himself into a swan and they flew away, singing beautiful music that put all its listeners asleep for three days and nights. With Aengus, Caer was the mother of Diarmuid. The mythology of pre-Christian Ireland did not entirely survive the conversion to Christianity, but much of it was preserved, shorn of its religious meanings, in medieval Irish literature, which represents the most extensive and best preserved of all the branches of Celtic mythology. ... In Irish mythology, Ethal was the mother of Caer by Prince Anubal of Connacht. ... In Irish mythology, Prince Anubal of Connacht was the father of Caer by Ethal. ... Connaught redirects here. ... This article contains information that has not been verified and thus might not be reliable. ... Genera Cygnus Coscoroba Swans are large water birds of the family Anatidae, which also includes geese and ducks. ... In Irish mythology, Aengus (Áengus, Óengus, Angus, Anghus) aka Aengus Óg (Aengus the Young), Mac ind Óg (son of the young) Maccan or Mac Óg (young son) was a member of the Tuatha Dé Danann and probably a god of love, youth and beauty. ... In Irish mythology, Diarmuid Ua Duibhne (Diarmuid of the love spot) was son of Donn and a warrior of the Fianna. ...

References

• Jeffrey Gantz. 1982. Early Irish Myths and Sagas. Penguin.