Máel Dúin mac Conaill died in 688.
Niall mac Conaill died in 778.
Ardgal mac Conaill died in 520.
It's derived from the Gaelic Mac Conaill meaning "son of Conall". Conall is derived from "cú" meaning wolf and "gal" meaning valor.
Mac Beathaidh mac Ainmire died in 1041.
Mac Cairthinn mac Coelboth died in 446.
Aed mac Conchbair Mac Aodhagáin died in 1359.
Tadhg mac Dáire Mac Bruaideadha died in 1652.
Pilib mac Séamus Mac Mathghamhna died in 1486.
Mac Picton died in 1985.
Mac Morgan died in 2007.
Mac Evans died in 1977.
Mac Swinford died in 1975.