Máel Muad mac Brain died in 978.
Muiredach mac Brain died in 885.
Cellach mac Brain died in 834.
Ruarc mac Brain died in 862.
Cennselach mac Brain died in 770.
Murchad mac Brain Mut died in 727.
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To answer this question the brain teaser must be provided. The type of brain teaser or the place of the brain teaser doesnÕt give enough information for someone not looking at the brain teaser to be able to solve it.
Mac Beathaidh mac Ainmire died in 1041.
Mac Cairthinn mac Coelboth died in 446.
Pilib mac Séamus Mac Mathghamhna died in 1486.
Tadhg mac Dáire Mac Bruaideadha died in 1652.
Aed mac Conchbair Mac Aodhagáin died in 1359.