The tomb's front panel carries four carved niches, each containing a knight bearing a shield, with a fifth niche only partially surviving. The niches themselves are pointed, cusped arches, a form common to Gothic stonework, resting on triple columns with carved capitals and bases. It is fine craftsmanship, but the material is what sets this piece apart: the stone is Dundry stone, a distinctive oolitic limestone quarried near Bristol. Whatever this tomb was made to commemorate, it was not made in Ireland.

The piece was discovered in 1946, embedded in the south wall of the chancel at Athassel Abbey, a large Augustinian priory in County Tipperary that was, at its peak, one of the most significant monastic foundations in medieval Munster. After its discovery it was moved to the college of the Vicars Choral on the Rock of Cashel, where it has remained since. The scholar John Hunt, writing in 1974, examined the weaponry depicted on the carved knights and noted that their swords, with large circular pommels and short straight crossguards, are characteristic of late thirteenth-century forms. He placed the tomb's likely date in the second half of the thirteenth century, possibly extending into the early fourteenth, and concluded that the combination of Dundry stone and the sculptural style pointed firmly to an imported monument from the west of England. Someone, it seems, commissioned this piece from craftsmen across the water and had it shipped to Tipperary, though for whom and why is not recorded.