Mess Búachalla (the cow-herder's foundling) is the mother of the High King Conaire Mór in Irish mythology.
[3] Because of her incestuous conception her father orders her exposed, but she is found and brought up by a herdsman and his wife.
She grows up to be very beautiful, and is forcibly married by the High King Eterscél.
One night, in Eterscél's house, she is visited by an unknown man who flies in her skylight in the form of a bird, and she has his son, Conaire Mór, who is brought up as Eterscél's son.
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