Domnall ua Néill
Domnall was the son of Muirchertach mac Néill , and grandson of Niall Glúndub , a member of the Cenél nEógain northern Uí Néill . 
<triplet> Muirchertach mac Néill <subj> Niall Glúndub <obj> father <triplet> Niall Glúndub <subj> Muirchertach mac Néill <obj> child