Lughaidh mac Dallán, 7th king of Uí Maine, fl. 5th-century/6th-century.
John O'Donovan remarked that "Lughaidh, the son of Dallan, and brother of Duach, was prince or chief ruler of Hy-Many for fourteen years, when he died a natural death."
References
Lughaidh mac Dallán Wikipedia(Text) CC BY-SA