Mickey could of course be right about there being an Irish text before Campbell wrote the English version, but I doubt if it is the extant Irish language text. In the Herbert Hughes book Songs of Uladh he has written the following note:

"I got this air from Cáit Ní Dhubhthaigh who sang it to me. She heard it at a fair in Leitir-Canadhnain when she was a child. It was sung to a ballad now forgotten."