The Morrígan
The Morrígan is often described as a trio of individuals, all sisters, called "the three Morrígna". Membership of the triad varies; sometimes it is given as Badb, Macha and Nemain while elsewhere it is given as Badb, Macha and Anand (the latter is given as another name for the Morrígan). It is believed that these were all names for the same goddess. The three Morrígna are also named as sisters of the three land goddesses Ériu, Banba and Fódla. The Morrígan is described as the envious wife of The Dagda and a shape-shifting goddess, while Badb and Nemain are said to be the wives of Neit. She is associated with the banshee of later folklore.