It marks a grave, or once did, yet offers nothing to identify whose. That anonymity is not unusual for its era, but it still gives pause: here is a medieval burial marker that has outlasted every trace of the person it was meant to commemorate.

The slab is a fairly precise object despite its plainness. It tapers from a width of around 53 centimetres at the head end down to 40 centimetres at the foot, and runs to just under 1.6 metres in length, roughly the dimensions of a modest adult. Around its upper edge runs a concave chamfer, a shallow inward-angled bevel that was a common finishing detail on funerary stonework of the period. The top left corner is broken away. St Mary's itself is a 13th-century church, and slabs of this tapering form are generally dated to the 13th or 14th century, which places this stone among the earlier fixtures of the building rather than a later addition. It lies in the nave, positioned a measured distance north of the south wall and west of the east wall of the south aisle, suggesting it has been documented carefully even if the person beneath it remains entirely unknown.