*Niall Frossach macFergal King of Ireland
died 0778

father:
*Fergal O'Néill King of Ireland & Ailech
died 11 December 0722

mother:
unknown

siblings:
Aed Allán macFergal O'Néill King of Ireland died 0743

spouse:
unknown

children:
*Aed Oirdnide O'Néill King of Ireland
died 0819

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com