I found this in the liner notes to a recording of the song:

"This song commemorates the victory of Fiach McHugh O'Byrne over the forces of the Crown as led by Lord Grey de Wilton in a battle which took place at Glen Malure, Co. Wicklow in the years 1580."

It's come up in quite a few threads before (put the title into the Lyrics and Knowledge Search box at top right) but no lyrics seem to have been posted. Has anyone got them?

Also in a previous thread, someone asserted that this is a recent song. If so, who wrote it?

Cheers,
Michael