The one at Knockroe, in County Kilkenny, is among the quieter examples of a tradition that once shaped the ritual calendar of nearly every townland in Ireland. These wells were not merely sources of water. They were places of pattern days, of rags tied to nearby bushes or trees as votive offerings, of prayers said in a specific order while walking a prescribed circuit known as the stations. The physical well itself could be anything from a simple stone-lined hollow to a more elaborate structure with a small recess or niche for a statue.

Kilkenny has a particular density of such sites, many of them associated with early medieval saints whose cults were intensely local, their names sometimes surviving only in the place names that cluster around the well. Knockroe itself sits in a county whose landscape preserves an unusually layered record of early Christian and prehistoric activity, from passage tombs to souterrains, the latter being underground stone-lined passages associated with early medieval settlements. Without more detailed documentation it is difficult to say which saint, if any, was venerated at this particular well, or whether any pattern day survived into the modern period. What can be said is that the form itself is ancient, and that wells like this one were frequently the last trace of a devotional landscape that has otherwise largely disappeared from view.