Henry (King of Ulster) O'Neill
- 1489
Generation: 1
Generation: 3
Generation: 4
1. Henry (King of Ulster) O'Neill (son of Eogan (King of Ulster) O'Neill and Catherine (of Oriel) Macmahon); died in 1489. Family/Spouse: Gormfhlaith Kavanagh. Gormfhlaith (daughter of Domnall Mcmurrough (King of Leinster) Kavanagh) died in 1465. [Group Sheet] [Family Chart]
Children:- Con Mor (King of Ulster) O'Neill died on 8 Jan 1492-1493.
2. Eogan (King of Ulster) O'Neill (son of Niall Og (King of Ulster) O'Neill and Una O'Neill); died in 1456. Eogan + Catherine (of Oriel) Macmahon. Catherine (daughter of Ardgal (King of Oriel) Macmahon) died in 1427. [Group Sheet] [Family Chart]
3. Catherine (of Oriel) Macmahon (daughter of Ardgal (King of Oriel) Macmahon); died in 1427. Children:
- 1. Henry (King of Ulster) O'Neill died in 1489.
Generation: 3
4. Niall Og (King of Ulster) O'Neill (son of Niall Mor (King of Ulster) O'Neill and Beanmidhe (of Oriel) Macmahon); died in 1403. Niall + Una O'Neill. Una (daughter of Domnall O'Neill) died in 1417. [Group Sheet] [Family Chart]
5. Una O'Neill (daughter of Domnall O'Neill); died in 1417. Children:
- 2. Eogan (King of Ulster) O'Neill died in 1456.
6. Ardgal (King of Oriel) Macmahon and died. Children:
- 3. Catherine (of Oriel) Macmahon died in 1427.
Generation: 4
8. Niall Mor (King of Ulster) O'Neill (son of Aedh Baemhar (King of Ulster) O'Neill and Gromfhlaith (of Tir Conaill) O'donell); died in 1394. Niall + Beanmidhe (of Oriel) Macmahon. Beanmidhe (daughter of Brian (King of Oriel) Macmahon) and died. [Group Sheet] [Family Chart]
9. Beanmidhe (of Oriel) Macmahon (daughter of Brian (King of Oriel) Macmahon); and died. Children:
- 4. Niall Og (King of Ulster) O'Neill died in 1403.
- Henry O'Neill died in 1392.
10. Domnall O'Neill and died. Children:
- 5. Una O'Neill died in 1417.