The Battle of Clontarf (Cath Chluain Tarbh) was a battle that took place on 23 April 1014 at Clontarf, near Dublin, on the east coast of Ireland.
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A clan is group of people united by actual or perceived kinship and descent.
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Kelly is a surname in the English language.
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Leabhar Ua Maine (also Leabhar Uí Dubhagáin, The Book of Hy-Many and RIA MS D ii 1) is an Irish genealogical compilation, created c. 1392–94.
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The Royal Irish Academy (RIA) (Acadamh Ríoga na hÉireann), based in Dublin, is an all-Ireland, independent, academic body that promotes study and excellence in the sciences, humanities and social sciences.
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A sept is an English word for a division of a family, especially of a Scottish or Irish family.
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Uí Maine, often Anglicised as Hy Many, was one of the oldest and largest kingdoms located in Connacht, Ireland.
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