Síol Éalaigh

Shillelagh derives its name from the Irish Síol Éalaigh, meaning Descendants of Éalach, a seventh-century Leinster king whose lineage became associated with the region. The settlement's modern character was shaped primarily by English colonial influence beginning in the fifteenth century when Thomas Wentworth, known as Black Tom, established the Coollattin Estate. The village itself was formall...