King of Ulster Brian Cathan An Duin O'Neil
1202 - 1260 (58 years)(
= Descendancy chart to this point, 
= Expand, 
= Collapse)
- 1 King of Ulster Brian Cathan An Duin O'Neil [1] b. 1202 d. 1260
- Egidia Jill MacDougall b. 1220
- 2 King of Ulster Domnall O'Neil of Ulster Macbrian [1.1] b. 1250 d. 1325
-
- 3 King of Ulster Aedh Baemhar O'Neill [1.1.1] b. Abt 1275
-
- 4 Princess of O'Neil Dynasty Sabia O'Neill [1.1.1.1] b. 1300 d. 1387
[ =>]
- 4 Princess of O'Neil Dynasty Sabia O'Neill [1.1.1.1]
- 3 King of Ulster Aedh Baemhar O'Neill [1.1.1]
- 2 King of Ulster Domnall O'Neil of Ulster Macbrian [1.1]