[1] He is not to be confused with Nath Í, bishop and founder of Sruthair Guaire (Shrule, County Carlow) and brother to co-founder Domoingen.
In the Irish genealogies, Nath Í is called a son of Senach son of Fergus Láebderc (in the Laud genealogies, a mac Fergusa) and made a member of the Dál Messin Corb of Leinster, the dynasty which also produced St Cóemgen of Glendalough.
[1] According to Ailbhe Mac Shamhráin, Nath Í may well have flourished in the first half of the 6th century, which would rule out the claim that he was a pupil of Máel Ruain at Tallaght.
[1][3] His entry in the Martyrology of Tallaght associates him with Cúil Sachaille and the saint mentioned below him with Fothirb, but this may be an error.
"The House of Nath Í"), which belonged to Glendalough and gave its name to the parish of Taney in the Dundrum area of south County Dublin.