The slab, measuring 1.77 metres long and 0.9 metres wide, carries the name of Alexius Fitzgerald, who died on the 16th of May 1694, and that of his wife Dorothy, née Lodge. The lettering is cut in Roman capitals, and the language shifts mid-inscription, moving from plain English into the brief Latin formula "Requiescat in Pace" before returning to record Dorothy's maiden name. It is a small but telling detail, suggesting a family comfortable enough with both vernaculars to use them in the same breath.

Below the inscription, a coat of arms was carved into the stone. The heraldry, described by the historian William Carrigan in his 1905 account of the diocese of Ossory, reads as ermine with five annulets arranged on a cross saltire, and a helmet as the crest. Ermine is the fur-patterned field familiar from medieval heraldry, white with black tail-spots, and a cross saltire is the diagonal or X-shaped cross. The combination, along with the formalised Latin valediction, places the Fitzgeralds within the Catholic landed tradition that persisted in Kilkenny through the latter decades of the seventeenth century, a period of considerable legal and social pressure on Catholic property-holders in Ireland. The slab's date of 1694 falls just a few years after the Williamite settlement, which makes its confident display of arms and Catholic epitaph quietly notable.