Rothechtaid Rotha, son of Róán, son of Failbe, son of Cas Cétchaingnech, son of Faildergdóit, was, according to medieval Irish legend and historical tradition, a king of the eastern midland kingdom of the Gailenga who became High King of Ireland after defeating his predecessor, SÃÂrna Sáeglach, in the battle of Alind. He was the first Irish king to use a four-horse chariot, which he had made for his queen. He ruled for seven years, until he was struck by lightning at Dunseverick, County Antrim. He was succeeded by his son Elim OlfÃÂnechta. The Lebor Gabála ÃÂrenn synchronises his reign with that of Phraortes of the Medes (665-633 BC). The chronology of Geoffrey Keating's Foras Feasa ar ÃÂirinn dates his reign to 794âÂÂ787 BC, that of the Annals of the Four Masters to 1031âÂÂ1024 BC.