Eochaidh, better known as Ollamh Fodhla, began his reign in 1317 and reigned for 40 years. He instituted the Feis Teamhrach, or the "Parliment of Tara" for making laws, reforming abuses, revising antiquities, genealogies, and chronicles, and purging them from all corruption and falsehood that might have been foisted into them since the last meeting. These parliment meetings continued up to AD 1172 and even one as late as 1258 at or near Newry. He appointed a chieftain over every cantred and a brughaidh over every townland. His posterity maintained themselves in the Monarchy of Ireland for 250 years, without any of the other two septs of Heber and Heremon intercepting them. He died in A.M. 3922, leaving five sons