I, too, am interested in Breen/Brien, etc name. My Breens pronounced it brains in the early days, I am told and they came from Tipperary. In GGgrandfathers obit it ws given as Cashel and info given by his wife who was living. ( I did not get much help from the Brian Boru center so am still looking, guess Cashel was large district) I am on the Wexford list for other families but always glad to pick up some more info.