Nuadu Finn Fáil (Nuadu the Fair of
Fál - a poetic name for Ireland), son of
Gíallchad, was, according to medieval Irish legend and historical tradition, a
High King of Ireland, who took power after he killed his predecessor, and his father's killer,
Art Imlech. The
Lebor Gabála Érenn says he ruled for either sixty or forty years (
Geoffrey Keating says twenty, the
Four Masters forty) before being killed by Art's son
Bres Rí. The
Lebor Gabála synchronises his reign with that of
Cyaxares of the
Medes (625–585 BC). The chronology of Keating's
Foras Feasa ar Éirinn dates his reign to 755–735 BC, that of the
Annals of the Four Masters to 1002–962 BC. His son was Áedan Glas, his son was Siomón Brecc mac Aedan, his son was Muiredach Bolgrach mac Siomon