Dungarvan was strategically located and was an important outpost and market centre for the hinterland.
In 1204 the Cantred of Dungarvan, one of three held by Donal O'Faolain of the Decies, was escheated and the Justiciary was commanded to take it into the King's hands. An Anglo-Norman settlement was established and at some period over the next ten years a stone castle was built. King John may have seen the work in progress on his visit to Ireland in 1210.
Dungarvan was granted its charter in July 1215 by King John granting it the laws of Breteuil in France ...