Fiacha Labhrainn was the 18th Monarch; reigned 24 years; slew Eochaidh Faobharglas, of the line of Heber, at the battle of Carman. During his reign all the inhabitants of Scotland were brought in subjection to the Irish Monarchy, and the conquest was secured by his son the 20th Monarch. Fiacha at length (B.C. 1448) fell in the battle of Bealgadain, by the hands of Eochaidh Mumho, the son of Moefeibhis, of the race of Heber Fionn.