He is the first king of Uisnech in Mide from the Uí Néill mentioned in the Book of Leinster king list. His by-name Cremthainne implies fosterage among the Uí Cremthainn of the Airgialla. He was probably originally the same person as Conall Gulban, the distinction arising from 8th century politics. According to a life of Saint Patrick by Tírechán, Patrick blessed Conall and rejected his brother Coirpre mac Néill, ancestor of the Cenél Coirpri, at a meeting at Tailtiu. Nothing is recorded of him in the annals other than his death date.
- Annals of Ulster at CELT: Corpus of Electronic Texts at University College Cork
- Byrne, Francis John (2001), Irish Kings and High-Kings, Dublin: Four Courts Press, ISBN 978-1-85182-196-9
- Charles-Edwards, T. M. (2000), Early Christian Ireland, Cambridge: Cambridge University Press, ISBN 0-521-36395-0
- Book of Leinster,Rig Uisnig at CELT: Corpus of Electronic Texts at University College Cork