The medieval parish church underwent substantial modifications around 1622, when it was adapted for Protestant worship following the Reformation’s sweep through Ireland. These alterations reflect the broader religious and political changes that reshaped Irish society during the early 17th century, as the established church shifted from Catholic to Protestant control.

The church served its congregation for another 170 years before being abandoned in 1792, when parishioners relocated to a newly constructed church in nearby Manorcunningham. Today, visitors can still spot intriguing medieval elements that survived the building’s various incarnations; three stone window fragments from the original church have been ingeniously repurposed as decorative elements in the gate piers of the surrounding graveyard. These carved pieces, built into the inner quoins of the entrance, offer tangible links to the site’s medieval origins.

The graveyard itself continues to bear witness to centuries of local history, its weathered headstones marking the passage of generations who worshipped at Raymoghy through times of religious upheaval and change. Archaeological surveys conducted in the 1980s documented these remains, ensuring that even as the physical structure continues to decay, its historical significance remains preserved in the archaeological record. The site stands as a testament to the layered history of Irish ecclesiastical architecture, where medieval craftsmanship, Protestant reformation, and eventual abandonment have all left their mark on the landscape.