Cellach mac Dunchad
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Cellach mac Dunchad was the first of ten Kings of Leinster to be inaugurated and based on Lyons Hill, Ardclough, County Kildare, a member of the Uí Dúnchada, one of three septs of the Uí Dúnlainge dynasty which rotated the kingship of Leinster between 750-1050, significant in County Kildare History.