In Castledermot, County Kildare, there survives a fragment of stone that hints at something far more elaborate than its current modest dimensions suggest. The piece, likely the lower right corner of a larger slab, measures just 0.57 metres in length and between 0.23 and 0.30 metres in width, with a thickness of 0.07 metres. Small as it is, it preserves traces of what was once a carefully composed object, one that combined a marginal lettered inscription with inlaid decorative work.

The detail that makes this fragment worth pausing over is the nature of its original design. A marginal inscription, meaning text arranged along the outer border or edge of the slab rather than across its face, was a relatively deliberate and skilled choice, associated with formal commemorative or ecclesiastical stonework. The additional inlaid decoration suggests the slab belonged to a tradition of high-quality craftsmanship, though only this corner survives to offer any evidence of what the whole might have looked like. The fragment is recorded in Bradley and colleagues' 1986 survey, which catalogued such pieces across Ireland, and Castledermot itself has long been known as a site of early medieval ecclesiastical significance, with its high crosses and round tower placing it among the more substantial monastic settlements of the midlands.