Once older he moved north from Lismalin and established a junior branch of the family in the Slieveardagh Hills at Clonamicklon, County Tipperary.
In the townland of Kilcoolyabbey [3] lies Kilcooly Abbey, close to the border with County Kilkenny.
Donagh Carbragh O'Brien, King of Thomond, founded the abbey for Cistercian monks about 1200.
Following the Dissolution of the Monasteries during the English Reformation, the lands were granted to the Earl of Ormond.
The lands of this family stretched some fifteen miles between Lismalin on the King’s River to Kilcooly.