There are already 1,068 users and over 21,460 genealogy profiles with the O'Neill surname on Geni. Explore O'Neill genealogy and family history in the World's Largest Family Tree.
mic (had a brother from whom descend the O'Neills)Called Hugh the Dextrous; he was killed in battleAodh Athlamh(The last King of his line.)Migration BET 1030 AND 1047 Settled on Barra in the HebridesTh...
Áed_OirdnideAed Oirdnide 795-817 Aed Oirdnide The Ordained 797-817 ADby Judy DonnalyAed Oirdnide the Ordained m Niall Frossach m Fergal m Mael Duin of Cenel Eogain became hi king in 797. He was known a...
Niall of the Nine Hostages son changed his last name to O'Neill
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