He was the son of Muirchertach mac Muiredaig (died 534), also considered a high king.
[4] Báetán ruled jointly with his nephew Eochaid mac Domnaill (died 572) from 569.
[6] They are also omitted from the earliest list of Kings of Tara, the Baile Chuind (The Ecstasy of Conn), a late 7th-century Irish poem.
[8] Báetán's son Colmán Rímid also appears as high king of Ireland in some lists.
Forgus, otáit Cenél Forgusa; Forannán, a quo Hui Forannáin; Ailill .i.