Children:
- 4. Muirchertach Mor mac Earca O'Neill was born about 430 in Antrim, Ulster, Ireland; died in 527.
- Fergus Mor MacErc was born about 434 in Antrim, Ulster, Ireland; died in 511 in Kingdom of Dalriada (Scotland).
- Fearadach O'Neill was born about 436 in Antrim, Ulster, Ireland; died in UNKNOWN.
- Tigernach O'Neill was born about 438 in Antrim, Ulster, Ireland; died in UNKNOWN.
- Mongan O'Neill was born about 440 in Antrim, Ulster, Ireland; died in UNKNOWN.
- Dalach O'Neill was born about 442 in Antrim, Ulster, Ireland; died in UNKNOWN.
- Maon O'Neill was born about 444 in Antrim, Ulster, Ireland; died in UNKNOWN.
- Fergus Og O'Neill was born about 446 in Antrim, Ulster, Ireland; died in UNKNOWN in Scotland.
- Lorne Mor MacErc was born about 448 in Antrim, Ulster, Ireland; died in UNKNOWN in Scotland.
- Loarn Og O'Neill was born about 450 in Antrim, Ulster, Ireland; died in UNKNOWN in Scotland.
- Angus Mor MacErc was born about 452 in Antrim, Ulster, Ireland; died in UNKNOWN in Scotland.
- Aongus Og O'Neill was born about 454 in Antrim, Ulster, Ireland; died in UNKNOWN in Scotland.
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