A County Dublin saint, Foelchu of Finglas, is among the Irish saints commemorated on the Irish calendars at September 24, as Canon O'Hanlon records:
St. Foelchu, of Finglas, County of Dublin.
Colgan tells us, that among those Saints, who were buried and venerated at Finglas, in the Dublin diocese, may be found a St. Foelchu. The time when he flourished is not known, but it seems to have been remote. His name, place, and feast are solely entered in our calendars. A festival in honour of Failchon of Fionughlass, is set down in the manuscript and published Martyrology of Tallaght. The place where he was venerated, is now a village, about two miles north-east from the present City of Dublin, and in the county of the same name. The foundations of a much older church than the present ruined one are yet traceable around the exterior of its chancel... The feast of Faelchu occurs on the 24th of September, according to the Martyrology of Marianus O'Gorman. His commentator adds, that he was of Fionnghlaisi or Findglas. In the Martyrology of Donegal, his feast is entered, at the 24th of September.
