Fedlimid Rechtmar (Old Irish:[ˈfʲeðʲlʲimʲiðʲˈrʲext̪β̃əɾ]; "the lawful, legitimate" or "the passionate, furious") orRechtaid ("the judge, lawgiver"),^[1] son ofTuathal Techtmar, was, according to medieval Irish legend and historical tradition, aHigh King of Ireland. His mother was Báine, daughter of Scál. He took power after killing his predecessor, and his father's killer,Mal mac Rochride.^[2]

The chronology ofGeoffrey Keating'sForas Feasa ar Éirinn dates his reign to 104–113, that of theAnnals of the Four Masters to 110–119.^[3] TheLebor Gabála Érenn synchronises his reign with that of theRoman emperorMarcus Aurelius (161–180). He ruled for nine or ten years before dying in his bed, and was succeeded byCathair Mór. One of his sons,Conn Cétchathach, would succeed Cathair. Two other sons, Fiacha Suighe, ancestor of theDal Fiachrach Suighe, and Eochaid Finn, are named in medieval sources.^[4]

He is said to have instituted the principle ofan eye for an eye into Irish law, after which the behaviour of the Irish improved.^[5]

The completion of the road construction aroundTara is attributed to him.^[6]

• Legendary High Kings of Ireland

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