Birog

Birog was a druidess of the Tuatha Dé Danann and friend of Cian.

Birog assisted Cian with the entry to Balor’s tower, where Cian seduced Eithne, the daughter of Balor. Balor knew from the prophecy that he would die if his grandson survived. So Balor ordered that Eithne’s son be killed. The Fomorian guard went to carry out the order, but dropped the infant into the water. Birog rescued the baby, who was named Lugh.