| Father | High King of Ireland Eochaidh XII ( IV ) Muigmedon (b. about 287, d. 365) |
| Mother | Inne Cairenn Chasdubh, of Britain (b. 288) |
| Son | Kings of Ailech Eoghan O'Neill+ (b. 377, d. 465) |
| Pedigree Chart |
| Burial | Niall of the Nine Hostages,, High King of Ireland, was buried in County Meath, IrelandBG. | |
| Birth | 311 | He was born in 311 in Ulster, IrelandBG. |
| Christening | 311 | He was christened in 311 in Tara, Meath, IrelandBG. |
| Death | 378 | He died in 378 at age ~67. |
| Last Edited | 7 December 2020 |