 At the county assizes in Cashel in 1606, Sir Nicholas Walsh , Chief Justice of the Irish Common Pleas, by special commission established the barony of Dough Arra, at the junction of counties Tipperary, Clare, and Limerick, and added it to Cross Tipperary.Dough Arra had previously been the unshired túath of the O'Brien-Arra sept.It was later merged with part of Uaithne (Owney) to form the modern barony of Owney and Arra.