Her daughters include the trinity of eponymous Irish goddesses Ériu, Banba and Fódla, the trinity of war goddesses the Badb, Macha and the Mórrígan (who is also named Anann), and also a trinity of sons, Glonn, Gnim, and Coscar.
It premiered publicly in 1917, serving as a prelude to a theatrical production, The Building of Banba.