Though no visible traces survive of the original fortification built by Norman forces in 1213, historical records reveal this was once part of a network of strongholds that included Dorles, Armolen and Kakaulis; all belonging to Theobald Walter, a powerful Anglo-Norman lord. That year, King John commanded Henry, Archbishop of Dublin, to transfer these castles to Reginald de Pontibus, demonstrating how these fortifications served as pawns in the complex political chess game of medieval Ireland.

The site held particular significance as it was erected on the termon lands of St Cronan, sacred ground that traditionally offered sanctuary and belonged to the church. This deliberate placement of a Norman military structure on ecclesiastical territory speaks to the tensions between religious authority and secular power during the conquest period. By 1245, documents describe the fortification as a 'mote et britagium', medieval terminology for a motte and bretasche; essentially an earthen mound topped with a wooden tower and palisade, typical of early Norman defensive architecture in Ireland.

What visitors see today is likely the stone castle and bawn that replaced these earlier timber defences, a common progression as Norman settlers consolidated their hold on Irish territories. The transition from temporary wooden fortifications to permanent stone structures marked a shift from conquest to colonisation, as the Anglo-Normans evolved from invaders to inhabitants. Archaeological surveys suggest the later stone castle may have been constructed directly atop the original ringwork, creating a palimpsest of defensive architecture that spans centuries of Irish history.