establishment of baronies, manors, towns and large land-owning monastic communities, and the county system. The towns of Dublin , Cork , Wexford , Waterford , Limerick , Galway , New Ross , Kilkenny , Carlingford , Drogheda , Sligo , Athenry , Arklow , Buttevant , Carlow , Carrick-on-Suir , Cashel