The terms "Irish" and "Ireland" are probably derived from the goddess Ériu. A variety of historical ethnic groups have inhabited the island, including the Airgialla, Fir Ol nEchmacht, Delbhna, Fir Bolg, Érainn, Eóganachta, Mairtine, Conmaicne, Soghain, and Ulaid. In the cases of the Conmaicne, Delbhna, and perhaps Érainn, it can be demonstrated that the tribe took their name from their chief deity, or in the case of the Ciannachta, Eóganachta, and possibly the Soghain, a deified ancestor. This practice is paralleled by the Anglo-Saxon dynasties' claims of descent from Woden, via his sons Wecta, Baeldaeg, Casere and Wihtlaeg.