Biography
Mac Muireadhaigh is believed to be the composer of a twenty-three verse poem in honor of Górdún Ó Neill, Gluaisigh ribh a ghlac rannsa ... Paul Walsh (priest) notes that "Our poem would seem to have been addressed to him before the stirring times of his last years in Ireland," meaning it was written for Ó Neill sometime in the 1680s.
No other details of Mac Muireadhaigh appear to be known, although a man of his surname was killed in action at the Battle of Aughrim in 1691, and was grandfather of Séamus Mór Mac Mhurchaidh, poet and outlaw, who was executed in 1750.
Górdún Ó Neill was a son of Felim O'Neill of Kinard.
The Poem
The first four verses of the poem:
References
Diarmuid Mac Muireadhaigh Wikipedia(Text) CC BY-SA