Yes, I am grateful for the An Duanaire anthology. It presents this literature in a way that an outsider like me can respect and begin to understand.

The argument in favor of the Flight of the Earls origin for this lyric, narrows its focus around The O'Donnell, anglicised as Red Hugh O'Donnell. I guess this historical figure interests readers of Roisin Dubh because he actually went to Spain, and the lyric mentions Spain. But was this not before the 18th century?

And what argument is put forward for Roisin Dubh being written in the 1700's? Not being defensive, just sincerely curious here.