Birog
In
Goidelic mythology,
Birog was a druidess who aided
Cian in climbing
Balor's
crystal tower where had imprisoned his daughter,
Ethlinn. When Ethlenn gave birth to
Lugh, the result of that visit, Balor threw the baby into the ocean. Birog saved him and gave him to
Manannan mac Lir to raise.