Ptolemy VI Philometor
He reigned for thirty or sixty years, and died at Tara, succeeded by his nephew Conall Collamrach. The "Lebor Gabála" synchronises his reign with that of Ptolemy VI Philometor in Egypt (180–145 BC). The chronology of Keating's "Foras Feasa ar Éirinn" dates his reign to 262–232 BC, that of the "Annals of the Four Masters" to 385–326 BC.