She's the daughter of the mother goddess Ernmas, and sister of the three patron goddesses of Ireland, Ériu, Banba, and Fódla. Along with her other sisters, Macha and Morrígan, Badb herself makes up part of a trio of war goddesses known as the Morrígna/Morrígan.
Consorts and Children:
She is either one of two wives of the war god Neit, or the wife of Tethra, king of a supernatural race known as the Fomorians.
Notable Stories Involving Her:
Badb Around the World:
Badb and her sisters could be considered the Celtic equivalent of the Norse Norns or the Greek Fates.
SOURCES: Wikipedia, Encyclopedia Mythica, & GodChecker