Nielsen Hayden genealogy
Rónán mac Coluim, King of Uí Chennselaig
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| Cellach Cualann mac Gerthide, King of Laigin | |
| D: | 715 |
| Crundmáel Erbuilc mac Rónáin, King of Laigin | |
| D: | 656 |
| of Uí Chennselaig | |
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