| Name | Donel O'Sullivan | |
| Birth | Abt. 1570 | |
| Gender | Male | |
| Person ID | I392212592970 | Our BIG Family Tree |
| Last Modified | 20 Mar 2025 | |
| Father | Owen Reagh O'Sullivan, b. Bef. 1549 d. Abt. 1594 (Age 45 years) | |
| Mother | Helena Barry, b. 1549, Cork, Cork, Ireland d. 1620, Dunboy Castle, Munster, Ireland (Age 71 years) | |
| Family ID | F2605 | Group Sheet | Family Chart |