Eamonn mac Conor is one of the Twins, the Lords of the Dalriada, along with his twin sister Grainne mac Conor. He is more cautious and thoughtful than his fiery sister. He dies at the Battle of Troyes-le-Mont. Eamonn mac Grainne, Grainne's son with Quintilius Rousse, Eamonn mac Grainne, was named for him.