Claim: Máel Dúin mac Conaill is among the kings named by the Duan Albanach although the general confusion of the sources makes any conclusion difficult and cannot be said with certainty.
Evidence: He is among the kings named by the Duan Albanach, following his brother Domnall Donn, which assigns him an improbable reign of 17 years. The general confusion of the sources makes any conclusion difficult, but while it is likely that Máel Dúin was co-ruler, with his brother Domnall Donn, of the Cenél nGabráin lands in Kintyre, it is not likely that Máel Dúin and Domnall were high kings of Dál Riata.