It sits there matter-of-factly, incorporated into the fabric of the building as though this were entirely normal, which in the context of early Irish ecclesiastical stonework it very nearly is. Fragments of old carved crosses were frequently reused as building material when their original context had been lost or their structural purpose had ended, and what survives tends to survive precisely because it was pressed into secondary service.

The church stands on Marino Avenue West, a road that leads eastward off the Killiney Hill road in County Dublin. The two crosses were compiled and recorded by Geraldine Stout and Padraig Clancy, with a revised entry dating to April 2018. Beyond their attachment to the north wall and their granite construction, the documentary record is spare. Granite was the dominant building stone of this part of south County Dublin, quarried from the same geological formation that shapes Killiney Hill itself, so the material is entirely local. What the original cross looked like in full, when it was made, or how it came to be reduced to its upper section are questions the record does not answer.

The church is straightforward to locate: take Marino Avenue West heading east from the Killiney Hill road and the building is along that stretch. The crosses are on the north wall, which typically receives less casual attention than a main entrance facade, so it is worth making a point of walking around to that side. The fragment is easy to overlook if you are not specifically looking for it, but once noticed it becomes one of those small, persistent puzzles that a place quietly holds. There is nothing to interpret or explain on site, which is part of what makes pausing in front of it worthwhile.