Eochaidh Eadghothach and His Decendents Sovereignty

After a somewhat brief sovereignty of four years under Eochaidh Eadghothach, Ireland was again divided between Cearmna and Sobhairce, grandsons of Eibhir son of Ir, who reigned for forty years. The line of division is from Drogheda to Limerick. Sobhairce, who built the dun called after him, ruled in the north, and Cearmna, who built another dun, ruled in the south. " They were the first Ultonian Kings of Ireland."

These were succeeded by Eochaidh Faobharglas who reigned twenty years and cleared seven plains of wood. During the longer reign of his successor Fiachaidh Labhruinne, Loch Eirne and three rivers, the Fleisc, Maine and Labhrainn " burst over land in Ireland."

Aonghus the Victorious, son of Fiachaidh, defeated the Cruithnigh and old Britons in several battles in Alba, and placed it under the full sway of the Gaels two hundred and fifty years after the coming of the Milesians to Ireland : as already indicated, Scotland had been under tribute to Ireland since the time of Eireamhon. Seven plains, north, south, east and west, were cleared of wood during Aonghus’s reign  of  about  twenty  years,  and  three lakes burst  over Ireland.