Dún Seachlainn

Dunshaughlin, located in the barony of Ratoath in County Meath, originated as an early Christian ecclesiastical foundation established by Saint Seachnall (Secundinus), a 5th-century bishop traditionally described as a nephew of Saint Patrick. The settlement traces its name from this religious origin—initially Domhnach Seachlainn ('church of Seachnall')—documented in the Annals of Ulster as earl...